CA Unit 3 Review

Which equation represents the following graph?

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

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2

The value of a particular car model t years after its purchased is given by
V(t) = 25000-3000t
What does V(0) represent?

• Value after 1 year
• Value after 1 week
• Value after 1 month
• Purchase price of the car

Tags

CCSS.HSF.LE.B.5

Is the pictured graph growth, decay, or linear or none?  

• Exponential Growth
• Exponential Decay
• Linear
• None

Tags

CCSS.HSF-IF.C.7E

What is the decay rate in the following model?
A=1200(.85)⁶

• -1200
• -.15
• 6
• -6

Tags

CCSS.HSF-LE.A.1C

What is a, the starting term, for the function: f(x) = 300(1.16)^x?

• 300
• 1.16
• .16
• x

Tags

CCSS.HSF.LE.B.5

Just by looking at the exponential function, we can tell if the function is decreasing because,

• The b will be less than one.

• The a will be a negative number

• The exponent will be less than 1

• There are no decreasing exponential functions.

Just by looking at the exponential function, we can tell if the function is increasing because,

• The a is always positive

• The a is larger than 0.

• The function has a positive exponent.

• The b is larger than 1.

Is this exponential growth or decay?

• Growth
• Decay

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

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

Tags

CCSS.HSF-IF.C.8B

Write an equation that models the following situation:
Samantha's hair was known to grow very rapidly. It began at a length of 6 in and grew at a rate of 14% a week.

• y=6(0.14)^x
• y=6(1+14)^x
• y=6(1.14)^x
• y=6(0.86)^x

Tags

CCSS.HSF.LE.A.2