Unit 4 Quiz Review: Functions

Presentation

•

Mathematics

•

9th - 10th Grade

•

Easy

•

CCSS

6.NS.C.6B, HSF.IF.A.2, 8.F.A.1

Standards-aligned

Rebeka Thornton

Used 4+ times

FREE Resource

12 Slides • 23 Questions

Unit 4 Quiz Review: Functions

Let's review what we have done in Unit 4!

Unit 4 Quiz Topics

Graphing on a Coordinate Plane
Function vs. Relation (Not a Function)
Function Notation & Evaluation
We're going to review backwards starting with Topic 3!

Topic 3: Function Notation, Evaluation

Evaluating a function given a specific input

Multiple Choice

Evaluate f(x) = 3x - 4 at f(3)

Answer:

Evaluate f(x) = 3x - 4 at f(3)

*Replace x with 3 and simplify!*

f(x) = 3x - 4

f(3) = 3(3) - 4

= 9 - 4

= 5

Multiple Choice

Let

g\left(x\right)=\frac{1}{3}x+4

What is g(6)?

Answer:

g\left(x\right)\ =\ \frac{1}{3}x+4

Determine g(6).

Replace x with 6 and simplify!
$g\left(6\right)\ =\ \frac{1}{3}\left(6\right)+4$
= 2 + 4
= 6

Multiple Choice

Evaluate f(-2) if f(x) = x²+ 5

-1

-9

Answer:

Evaluate f(-2) if f(x) = x²+ 5

*Replace x with -2 and simplify!*

f(-2) = (-2)²+ 5

= 4 + 5

= 9

(-2)² is POSITIVE 4!

Fill in the Blanks

Type answer...

Answer:

Determine f(4) if f(x) = x²+ 4

*Replace x with 4 and simplify!*

f(4) = (4)² + 4

= 16 + 4

= 20

Fill in the Blanks

Type answer...

Answer:

Let g(x) = 5 - 2x

What is g(6)?

*Replace x with 6 and simplify!*

g(6) = 5 - 2(6)

= 5 - 12

= -7

Topic 2: Function vs. Relation (Not a Function)

A relation is a function if...

there is one output for each input!

How can you tell if a relation is a function?

Multiple Choice

What do we use to check if a graph is a function?

Line of best fit

Scatter plot

Horizontal Line Test

Vertical Line Test

Multiple Choice

Is the given table a function or not a function?

Function

Not a Function

Multiple Choice

Which set of values is a function?

(Hint: Look at the x-values on the left side! Do any repeat?)

(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)

Multiple Choice

Is this a function? Explain.

Yes; it passes the vertical line test.

No; it fails the vertical line test.

Multiple Choice

Function or not a function?

Function

Not a Function

Multiple Choice

Is the relation a function? Why.

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.

Multiple Choice

Is this table a function and how can you tell?

No it's not a function because the x-value of 2 and 5 repeats

Yes, it is a function because no x-values repeat.

Multiple Choice

Is this mapping a function and how can you tell?

Yes its a function because all of the x-values only have one arrow.

No it's not a function because the x value 5 has two arrows going to 2 and 9.

Multiple Choice

Which of the following graph is a function?

Topic 1: Graphing on a Coordinate Plane

Parts of a Coordinate Plane
Plotting Points
Naming Coordinates

Multiple Choice

What point is represented by the ordered pair (3, 0)?

Multiple Choice

What ordered pair represents the location of POINT W?

(0, -3)

(-3, 0)

(0, 3)

(3, 0)

Multiple Choice

What ordered pair represents the location of POINT I?

(-2, -5)

(-5, -2)

(2, 5)

(5, 2)

Multiple Choice

The coordinates of the point where the number lines intersect are (0,0).

This point is called the:

origin

coordinate plane

quadrant

y-axis

Multiple Choice

Fill in the blank:

The ________________________ is the horizontal number line in a coordinate plane.

y-axis

x-axis

Multiple Choice

Which axis runs vertically?

X-axis

Y-axis

Multiple Choice

Give the coordinates for POINT H.

(-1, 2)

(1, -2)

(-1, -2)

(1 , 2)

Multiple Choice

Name the quadrant where POINT B is located.

Quadrant I

Quadrant II

Quadrant III

Quadrant IV

Multiple Choice

Name the quadrant where POINT C is located.

Quadrant I

Quadrant II

Quadrant III

No Quadrant

The End! You made it!!!

If you need any additional help with these topics, you can complete the quiz review again, ask Mrs. Thornton for help, and/or check out the resources on Schoology!

Unit 4 Quiz Review: Functions

Let's review what we have done in Unit 4!

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