Thinking with Math Models

What is the y-intercept of the line graphed below?

• 3
• 4
• -3
• 4/3

Which equation best represents the line on the graph?

• y= 1/2x
• y= -1/2x
• y = 2x
• y = -2x

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2

Which equation represents the following graph?

• y = 3x + 2
• y = -2x + 3
• y = 2x + 3
• y = -3x + 2

Which equation matches the table below?

• y = 3x + 6
• y = -3x + 6
• y = 3x - 6
• y = -3x - 6

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=-3x-10
• y=-1/3x-10
• y=-10x+10
• y=-4x-10

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2

Write the equation of the line. 

• A
• B
• C
• D

What does the y-intercept of the graph represent? 

• the loss in value of the washing machine per year
• the number of years it takes for the washing machine to lose all its value
• the amount the washing machine is worth when you first buy it
• the amount the washing machine is worth after 5 years

Tags

CCSS.HSF.LE.B.5

What is the meaning of the slope?
A factory starts the day with 250 shoes and makes 15 shoes every hour it is open.
y=15x + 250

• the factory makes 15 shoes every hour
• the total number of shoes made by the factory
• the number of shoes the factory started with

Tags

CCSS.8.EE.B.5

A driving range charges $4 to rent a golf club plus $2.75 for every bucket of golf balls you hit. Write an equation that shows the total cost c of hitting b buckets of golf balls.

• c = 2.75b + 4
• c = 2.75b
• c =  4b- 2.75
• c = 2.75b - 4

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2

Is function represented by the table linear or nonlinear?

• linear
• nonlinear

Tags

CCSS.8.F.A.3