Which equation is a function of x?
x = 5
x = y squared + 9
x squared = y
x squared = y squared + 16

Answers

Answer 1

Answer:

x squared = y

Step-by-step explanation:

Functions

Things can get more complicated, but based on the examples given, for an equation to be a function of x, it must have a single y, where the y is not raised to a power.

Option 1:  x=5

This equation doesn't have a y, so it isn't a function of x.

Option 2:  x = y squared + 9

This equation has y raised to a power, so it isn't a function of x

Option 3:  x squared = y

This equation has a y, and the y isn't raised to a power.  This is a function of x.

Option 4:  x squared = y squared + 16

This equation has y raised to a power, so it isn't a function of x

Determining functions graphically

If the equations are graphed, the graphs must pass a vertical line test (a vertical line drawn anywhere should not intersect the graph more than once).


Option 1:  x=5

x=5 represents a vertical line, so it fails the vertical line test (the vertical line would overlap and intersect it infinitely many times).

Option 2:  x = y squared + 9

x = y squared + 9 is a sideways parabola.  A vertical line will cross it twice in several places

Option 3:  x squared = y

x squared = y is a parabola that opens upward.  It will pass the vertical line test

Option 4:  x squared = y squared + 16

x squared = y squared + 16 is a hyperbola (fancy graph shape) that won't pass the vertical line test.


Related Questions

Show the work please thanks

Answers

Answer:

A

Step-by-step explanation:

the two highest clubs collected 60 and 50. the number of students in the two classes is 12 and 16 respectively. 12/16=3/4

i think it’s A. but i could b wrong. btw i just guessed i don’t know if it correct or not

Plz helpppp

Definition: Involving the use of variables, properties, expressions, and equations.

Answers

Answer: algebra?

Step-by-step explanation:

algebra it’s pretty easy good luck

1. 5 cups to 8 cups 2. 150 pounds to 135 pounds
Increase or Decrease Increase or Decrease

Work: Work:


Percentage: Percentage:

plz help on both problems thanks

Answers

Answer:

1. Increase, 8 cups/5 cups= 160% Increase

2. Decrease 135/150= 10% Decrease

Step-by-step explanation:

I hope this helps

equation 9 x j(2 + 5).

You will now use mathematical properties to create two expressions that are equivalent to the expression you created in Question 1. Make sure you show all steps in your work.

Answers

Answer: heres a sinplfied experesion 63xj

Step-by-step explanation:

9xj(2+5)
Add the values 2 and 5
9*7 x
Multiply 9 and 7
63x

3x + 2 = -55 i need alll the steps

Answers

3x + 2 = -55
3x = -57
x = -19
3x+2=-55
-2 -2
——————-
3x = -57
— —-
3 3

x=-19

I hope this helped

The table shows the number of hours spent practicing singing each week in three samples of 10 randomly selected chorus members.

Which statement is most accurate based on the data?

A). A prediction based on the data is reliable because the means of

the samples are close together.

B). A prediction based on the data is reliable because each sample

has 10 data points.

C). A prediction based on the data is not completely reliable, because

the means are not the same.

D.) A prediction based on the data is not completely reliable, because

the means of samples 1 and 2 are greater than 9 and the mean of

sample 3 is less than 9.

Answers

Answer:

A

Step-by-step explanation:

Answer:

B

Step-by-step explanation:

I took the Quiz

The area of one side of a U.S. 50-cent piece is 735 square millimeters. What is the diameter of the half-dollar, rounded to the nearest tenth. Use 3.14 for the value of π. The diameter = _______ mm.

Answers

30.6


735
——
3.14

find the square root, then multiply it by 2

Answer:

30.6

Step-by-step explanation:

If you add​ Natalie's age and​ Fred's age, the result is 42 . If you add​ Fred's age to 4 times​ Natalie's age, the result is 84 . Write and solve a system of equations to find how old Fred and Natalie are?

Answers

There both 21 21x4=84
I DID THIS ON A PIECE OF PAPER AND I GOT 21 ON BOTH AND I AM A SIXTH GRADER BY THE WAY

hel0 me I will mark brainliest

Answers

-2,-1 1/2, 1/2, 1 1/2

Answer:

-2 < -1 1/2 < 1/2 < 1 1/2

This may be correct, we are learning the same thing in our own classes!

PLSSSSS HELPPPP thanks i don't know i guess ill give brainliest :)

Answers

Answer: 68 mi,

Step-by-step explanation:

Hope this helps!

If it does mark brainlest!

68 mi ? Sorry if I’m wrong! I hope this helps!

Please help will give brainliest

Answers

I think A. but I am not really sure.
The answer is A! Click A! I hope this helps! The answer is A

When finding the unit rate, the words per and each tell us what unit of measure needs to equal ONE. True or False

Answers

Answer:

false

Step-by-step explanation:

I think it should be false

pls answer also no explanation no brainliest.

Answers

Answer:

i belive the answer is the option c

Answer: A

Step-by-step explanation:

3x is the same as 3 times x, and is the same as + or addition, then it says equal =, 4 is less than 5 times the value of x= 4-5x, 5 times x=5x

MATH SMARTIES I WILL GIVE BRAINLIEST THIS IS AREA OF THE COMPOSITE FIGURES. DIRECTIONS-NAME THE SHAPES GIVE THE SHAPES THERE FORMULA FIND THERE AREA THEN SUBTRACT THE ANSWERES YOU GOT FROM THE AREAS AND THAT SHOULD ANSWER MY QUESTION

Answers

Answer:

rectangle triangle trapezium

Step-by-step explanation:

rectangle =length×width(12×7=84)

triangle=1/2base×height(1/2×8×7=28)

trapezium=1/2sum of parallel lines ×height(1/2×(6+2)×7=28)

area of the rectangle subtract area of two trapeziums. (84-{28×2}=28)

I need you guys to show work too please one by one make sure to answer every single one also this is apart of them from my homework packet so please make your answer count

Answers

Answer:

5. $4.50

6. 40 photo albums

7. s ≥ 4.25

8. r ≤-2; filled circle on -2 going to the left

Step-by-step explanation:

5.

(4 + x ) / 2 =4.25

(multiply by 2)

4 + x = 8.5

(subtract 4)

x= 4.5

6.

60 = 5 + (n * 1 3/8)

(subtract 5)

55 = n * 1 3/8

(divide by 1 3/8)  

40 = n

7.

70 ≤ 36 + 8s

(subtract 36)

34 ≤ 8s

(divide by 8)

4.25 ≤ s

8.

9r + 3 ≤ -15

(minus 3)

9r ≤ -18

(divide by 9)

r ≤ -2

a car drives 10 1/2 miles in 1/6 hour. what is its speed in miles per hour

Answers

(Credit to guy/girl above) 63 miles 10 1/2 x 6 is 63.

The speed for the given distance and time is 12.6 miles per hour.

What is the speed?

The speed formula can be defined as the rate at which an object covers some distance. Speed can be measured as the distance travelled by a body in a given period of time. The SI unit of speed is m/s.

Given that, a car drives [tex]10\frac{1}{2}[/tex] miles in 1/6 hour.

We know that, the formula to find the speed is Speed=Distance/Time

Speed = [tex]10\frac{1}{2}[/tex] ÷ 1/6

= 21/10 ×6/1

= 63/5

= 12.6 miles per hour

Therefore, the speed for the given distance and time is 12.6 miles per hour.

To learn more about the speed, distance, and time visit:

brainly.com/question/4978052.

#SPJ2

A math test is worth 50 points, but there is extra credit. If you get 110% on the test, how many points is your score?

Answers

Answer:

105

Step-by-step explanation:

Can someone help please someone just took almost all my points bc they didn't answer it

Answers

Answer:

1. is 351.25 ft^2.

2. is 72.4 rounded up to 73 sections.

3. is 450 meters.

4. is $129.

1) is 1.25 ft^ ^ 2 .

WILL GIVE BRAINLIEST
Match the cube roots and square roots with their values.

please see picture as shown below and answer. ;]

Answers

Answer:

[tex]\sqrt{64}[/tex] = 8

[tex]\sqrt{9}[/tex] = 3

[tex]\sqrt{100}[/tex] =10

[tex]\sqrt[3]{343}[/tex] = 7

[tex]\sqrt[3]{729}[/tex] = 9

[tex]\sqrt[3]{216}[/tex] = 6

Step-by-step explanation:

^^ correct answer above

Can somebody please help me and show the work as well? Thank you!

Answers

14 x 3 = 42
5 x 3 = 15
42 + 15 = 57
57 x 2 = 114
Answer: 114
the answer to the question is 114

please answer (will rate 5 stars

Answers

7a and 7c are true. 7b is false

Two exponential functions are shown.

If f(x)=3x and g(x)=3x+c, what is the value of the constant c?

Select one:
A. 1
B. 3
C. 4
D. -4

Answers

It would be B.3 because the x axis is 3 for both equations
B. (3) is the right answer

I need help answer as quick as you can please

Answers

Answer:

Harper can buy 2 or less bags of fruit.

Step-by-step explanation:

3.50 + 4.75b ≤ 15

+(-3.50)        +(-3.50)

4.75b ≤ 11.5

/4.75    /4.75

b ≤ 2.42105263158

Evaluate the expression for the given value of x
1.1x - 4.9 for x = 9
THANK YOU :)

Answers

1.1(9)-4.9
9.9-4.9
5
hope that helped ;)

PLEASE HELP WITH THESE !!
ILL TRY TO MARK BRAINLIEST !!

Answers

Answer: 1. 32x37.21 =1192

2. 120

3. 12

4. 24

Step-by-step explanation:

1. 15 was used instead of 13 for the height (104 is the corrected area)
2. 894
3. 12
4. 24

please help due in 30 minutes will give brainliest.

Answers

Answer:

[tex]4^{18}[/tex]

Step-by-step explanation:

[tex]4^{6+3+9} \\= 4^{18}[/tex]

Answer:

[tex] 4^{18} [/tex]

Step-by-step explanation:

You are multiplying 3 powers with the same base.

Write the same base and add the exponents.

[tex] 4^6 \times 4^3 \times 4^9 = 4^{6 + 3 + 9} = 4^{18} [/tex]

50 POINTSSS
What is the total perimeter of this figure?



30.28 ft
24.56 ft
36.56 ft
24.28 ft

Answers

Answer:

32

Step-by-step explanation:

i think this is right

Answer:

The correct answer is 32 but that is not a choice

so maybe it is the number closest to 32 wich would be 30.28

Step-by-step explanation:

The weekly ad for a local grocery store advertises a 5-pound bag of organic apples for $13.95 Round each rate to the nearest hundredth if needed.
(a) Find both unit rates.
(b) Which unit rate is typically used? Explain.
Please keep the answers simple! Thank you!

Answers

Hi this is face because win points ok

The figure below shows a shaded region and a non-shaded region. Angles in the figure that appear to be right angles are right angles.




What is the area, in square feet, of the shaded region?


What is the area, in square feet, of the non-shaded region?

Answers

Answer:

Step-by-step explanatioihhin:

Sorry I really need points

A 5-pound bag of dog food costs $8. What is the unit price of the dog food?

Answers

Answer:

1.6

Step-by-step explanation:

because if you do 8÷5=1.6 and you need to get each unit.

1.6 because you need to divide 8/5 which comes out to 1.6
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