Functions 8th grade math

Vocabulary

100

The x value is the

input

200

The y value is the 

output

300

Which variable is independent 

The input or x

400

Which variable is always dependent 

the output or y

Mapping Diagrams

100

Draw a mapping diagram for the following points: (1,2) (2,4) (3, 5)

x- 1, 2,3

y- 2,4,5

200

Draw a mapping diagram for the following points: (0,0) (5,7) (9, 10)

See whiteboard

300

Draw the following mapping diagram: (1, 3) (1, 5)(1, 7)

See Notability 

400

Draw the following mapping diagram: (9,0) (10, 0) (12, 0)

See Notability 

Table of Values

100

Linear or nonlinear? x-1,2,3 and y-1,2,3

LINEAR!!!!!

200

Linear or nonlinear? x- 1,2,3 y- -5, -10, -15

Linear!

300

Linear or nonlinear?

x- 0, 0, 0

y- 0, 0, 0

Nonlinear! It's only one point

400

Linear or Nonlinear?

x- 33, 99, 155

y- 11, 22, 16

NONLINEAR!

Equations

100

Linear or nonlinear?

y = 3x + 4

Linear

200

Linear or nonlinear?

y =x³

Nonlinear

300

Write a linear equation

Various answers

400

Write TWO examples of nonlinear equations

Various answers

Statements

100

The output is the input plus 3

y= x + 3

200

The output is half of the input 

y= 1/2x   OR y= x/2

300

Write the following equation as a statement:

y= x - 3

The output is three less than the input

400

Write the following equation as a statement

y = 2x + 10

the output is twice the input plus ten