Function Form Linear Functions

What is the equation for this graph? 

• y=-1x+0

• y=1/2x+0

• y=2x+0

• y=-2x+0

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3

What type of slope does the following graph have?

• Postive

• Negative

• Zero Slope

• Undefined

Tags

CCSS.8.EE.B.5

The table shows the cost of a pizza, P(t), based on the number of toppings, t. Write a linear function for P(t).

• P(t) = 3t + 17.5

• P(t) = 2t +11.5

• P(t) = 3.5t + 9

• P(t) = 2.5t + 10

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2

Which equation best represents the relationship between x and y in the table shown?

• y= 5x+5

• y=1/5x+5

• y=15x+5

• y=10x+5

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2

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

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2

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

Tags

CCSS.HSF.LE.B.5

Is this function linear or nonlinear?

• Linear

• Nonlinear

Tags

CCSS.8.F.A.3

If the slope of a line is 3 and the y intercept is 6, what is the correct equation in slope intercept form?

• y=3-6

• y=3x-6

• y=3x+6

• y=6x+3

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3

The Roaming Cell Phone Company charges $15.00 per month plus $2 per minute of airtime usage. The linear function C(x) represents the cost for x minutes of airtime usage.

C(x) = 2x +15

Solve C(x) = 23

• 4 minutes

• 3 minutes

• 2 minutes

• 5 minutes

What is the slope and y-intercept of the linear function given by the equation 7x + 2y = -28

• m = 7, b = 14

• m = -7/2, b = -14

• m = 7/2, b = 14

• m = 7, b = -14

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3