Is the following graph a function?

Yes, because the x never repeats.

Yes, because they are individual dots.

The function h(t) represents the amount made at Best Buy after t hours. What does the notation h(4) = 500,000 mean?

After 4 hours Best Buy has made $500,000

After 500,000 hours Best Buy made $4

Best Buy makes money at a rate of 500,000/4 hours per dollar

Best Buy makes money at a rate of $500,000 hours per week

No, it fails the vertical line test

Yes, it passes the vertical line test

No, since it is not a straight line

Yes, functions can be any shape

Write the equation of the graph.

y = 1 2 x + 3 y=\frac{1}{2}x+3 y = 2 1 x + 3

y = − 2 x − 3 y=-2x-3 y = − 2 x − 3

y = − 1 2 x − 3 y=-\frac{1}{2}x-3 y = − 2 1 x − 3

Write the equation of the graph

y = − 3 x + 2 y=-3x+2 y = − 3 x + 2

y = 1 3 x + 2 y=\frac{1}{3}x+2 y = 3 1 x + 2

y = − 1 3 x + 2 y=-\frac{1}{3}x+2 y = − 3 1 x + 2

Write the equation of a graph.

y = − 3 x − 3 y=-3x-3 y = − 3 x − 3

y = − 3 x + 3 y=-3x+3 y = − 3 x + 3

y = 3 x − 3 y=3x-3 y = 3 x − 3

Functions 2

Authored by Ngozi Usim

Mathematics

8th Grade

CCSS covered

Used 1+ times

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26 questions

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MULTIPLE CHOICE QUESTION

3 mins • 1 pt

What is the definition of function?

Has inputs and outputs

Every input has only ONE output

Inputs have different outputs every time

x-values and y-values

Tags

CCSS.8.F.A.1

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Is this mapping a function or not a function?

Function

Not a Function

Tags

CCSS.8.F.A.1

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Is the relation a function? Why.

Yes, because the x-value 11 has two y-values pair with it.

Yes, because each x-value has only one y-value paired with it.

No, because the x-value 11 has two y-values pair with it.

No, because each x-value has only one y-value paired with it.

Tags

CCSS.8.F.A.1

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Which set of values is a function?

(9,5) (10,5) (9,-5) (10,-5)

(3,4) (4,-3) (7,4) (3, 8)

(6,-5) (7, -3) (8, -1) (9, 1)

(2, -2) (5, 9) (5, -7) (1, 4)

Tags

CCSS.8.F.A.1

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Does the table represent a function?

Yes, there is a repeated x-value.

No, there aren't any repeated y-values.

Yes, there are repeated y-values.

No, there is a repeated x-value.

Tags

CCSS.8.F.A.1

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Function

Not a Function

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Function

Not a Function

Tags

CCSS.8.F.A.1

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Functions 2

What is the definition of function?

Is this mapping a function or not a function?

Is the relation a function? Why.

Which set of values is a function?

Does the table represent a function?

Is this table a function or not a function?

Is this is a function or not a function?

.

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