Graph and Write Linear Functions

Is this graph a function or not a function? 

• Function

• Not a Function

What equation does the table represent?

• y=x+1

• y=x-1

• y=2x+1

• y=2x-1

Which of these represents slope-intercept form of a linear equation?

• y - y₁ = m(x-x₁)

• Ax + By = C

• y = mx + b

Jerome has $150 in his savings account and saves $40 per month. Write a linear function J(x) that will tell us the money Jerome has in his savings account after x months.

• J(x) = 150 + 40

• J(x) = 40x + 150

• J(x) = 150x + 40

• J(x) = 40 + 150

• slope: 1/6 y-intercept: 4 

• slope: 1/5 y-intercept: 5 

• slope: 5/1 y-intercept: 5 

• slope: 1 y-intercept: 5 

A plumber charges $50 for a house call plus $12 per hour for labor. The linear function P(x) represents the cost of the plumber for x hours.

P(x) = 50 + 12x

Find P(4)

• $86

• $98

• $110

• $74

Slope is another word for:

• Initial Value

• Rate of Change

• Change in Y's

• Y-intercept

Is this function linear or nonlinear?

• Linear

• Nonlinear

Which graph is linear?

• Graph A

• Graph B

• Graph C

• Graph D

Find the slope from the table.

• -4

• 1

• 4

• -2