Unit 4A Review

Presentation

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Mathematics

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8th Grade

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Practice Problem

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Medium

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CCSS

8.F.A.1, HSF.IF.B.5, 8.F.A.3

+11

Standards-aligned

Jennifer Elgin

Used 11+ times

FREE Resource

8 Slides • 21 Questions

Unit 4A Review

Do Now:

1. Check HW with the answer key on the Daily Agenda/HW Board

2. Have a whiteboard, marker, and eraser ready to go!

The Coordinate Plane!

Plotting points
Determining locations (quadrants)

Multiple Choice

Where is point E located?

( 2, 0 )

( 2 , 2 )

( 0 , 2 )

( 0 , 0 )

Multiple Choice

In which quadrant is the following point?

(-3, -12)

Quadrant I

Quadrant II

Quadrant III

Quadrant IV

Multiple Choice

Ordered pair (0,0) is also known as the ___.

y-axis

x-axis

origin

Defining Functions

Is it a function?

Multiple Choice

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

Multiple Choice

Which of the following is a function?

Comparing Functions!

- Linear v. Nonlinear

- Discrete v. Continuous

- Where is the graph increasing, decreasing, neither?

Multiple Choice

Is the graph pictured a linear or nonlinear function?

Linear

Nonlinear

Multiple Choice

Is this function linear or nonlinear?

Linear

Nonlinear

Multiple Choice

Is the table linear or nonlinear?

Linear

Nonlinear

Multiple Choice

Discrete or continuous data?

Discrete

Continuous

Multiple Choice

Discrete or continuous data?

Discrete

Continuous

Multiple Choice

While driving to Florida, Sophia averaged 72 m.p.h.

Discrete

Continuous

Multiple Choice

The number of school lunches sold during the month.

Discrete

Continuous

Domain and Range

Determine the domain and range of...
Continuous functions
Rays
Line segments
Discrete functions

Multiple Choice

For the function {(0,1), (1,-3), (2,-4), (-4,1)}, write the domain and range.

D: {1, -3, -4,}
R: {0, 1, 2, -4}

D:{-4, 0, 1, 2}
R:{-4, -3, 1}

D:{0, 1, 2, 3, 4}
R:{1, -3, -4}

Multiple Choice

What is the DOMAIN of this graph?
Remember: DOMAIN is the x from left to right.

x < -3

x ≤ -3

x > -3

x ≥ -3

Multiple Choice

What is the range of the graph?
Remember: Range is y!

1 ≤ x ≤ 5

1 < x < 5

1 ≤ y ≤ 5

1 < y < 5

Multiple Choice

What is the domain of the graph shown?

{-2, -1, 0, 1, 2, 3, 4}

{2, 3, 4}

2 ≤ y ≤ 4

-2 ≤ x ≤ 4

Multiple Choice

What is the range of this graph?

All Real Numbers

-2 < x < 2

-1 < y <1

-2 < y < 2

Function Notation

Evaluate functions
Write equations in function notation

Multiple Choice

g(x) = 3x + 1
g(2) = _______

Multiple Choice

Given f(x) =
2x² + 5x - 17, find f(-1).

f(-1) = -20

f(-1) = -24

Writing Rules for Functions

The function machine!
Write an equation in function notation that demonstrates how the input turns into the output.

Multiple Choice

Write an equation to show a relationship between the input and the output

b(a) = 9a

b(a) = a/8

b(a) = a/9

a(b) = 8/b

Multiple Choice

Determine which rule best represents the expression the function machine used

^{f(z) = z + 7}

f(z) = 7z

f(z) = 8z + 7

f(z) = 6z + 7

Go to Google Classroom

Answer the question on Google Classroom

Unit 4A Review

Do Now:

1. Check HW with the answer key on the Daily Agenda/HW Board

2. Have a whiteboard, marker, and eraser ready to go!

Show answer

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