Modeling with Functions Review

What is the equation of this line?

• y = 2x +2

• y = 2x -2

• y = -x + 2

• y = x + 2

Find the slope between the two given points: (-2,1) and (5,7)

• 7/6
• 2
• 6/7
• -2

Tags

CCSS.8.EE.B.5

Which equation matches the table?

• y = 3x + 9
• y = x + 9 
• y = x + 3
• y = 12x - 3

Tags

CCSS.HSF.LE.A.2

CCSS.8.F.B.4

The value of a car is $15,000 and depreciates at a rate of 8% per year. What is the decay factor?

• 0.08

• 1.08

• .92

• 8

Which of the following functions shows an initial amount of $15 and an increase of 35% each year?

• y = 15(35)^x
• y = 15(1.35)^x
• y = 15(0.35)^x
• y = 35(1.15)^x

Tags

CCSS.HSF.LE.A.2

What type of function is y = 7(5/4)^x?

• Exponential Growth
• Exponential Decay
• Linear
• None of the above

Tags

CCSS.HSF.LE.A.1

CCSS.HSF.LE.A.3

Identify the y-intercept (initial value) of the function f(x)=2(4)^x.

• 2
• 4
• (2)^x
• 8

Tags

CCSS.HSF-IF.C.7E

Which of the equations below represent this table?

• y=3⋅(36)^x
• y=36⋅(3)^x
• y=3⋅(⅓)^x
• y=36⋅(⅓)^x

Tags

CCSS.HSF.LE.A.2

What does this graph represent?

• Exponential Growth

• Exponential Decay

What type of exponential function is shown?

• Growth

• Decay