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- 1. Multiple Choice
The function P(t)= 28000(0.94)x models the value of a car x years since 2015.
What does the value 0.94 represent in the function?
The initial amount/y-intercept
The exponential pattern/base
The time in years
The rate of change
- 2. Multiple Choice
A lab researcher begins with 50 cells. The cells double every hour.
Which function below represents the situation?
y = 2x + 50
y = 50x + 2
y = 2(50)x
y = 50(2)x
- 3. Multiple Choice
Identify the following as a Growth or Decay. Then find the rate of change as a %.
y = 31(1.54)x
Growth of 54%
Decay of 54%
Growth of 46%
Decay of 46%
- 4. Multiple Choice
Which of the following functions has the largest y-intercept value?
y = 8x + 4
y = 5(10)x
y = 1/2x + 7
y = 9(6)x
- 5. Multiple Choice
Identify the following as a Linear or Exponential Function.
Gabbi currently has $75 in her savings account. She deposits $25 per week from her paycheck.
Linear Function
Exponential Function
- 6. Multiple Choice
Given the following exponential function, identify whether the change represents growth or decay. Then determine the % rate of increase or decrease.
y = 4200(0.98)x
Growth of 98%
Decay of 2%
Growth of 2%
Decay of 98%
- 7. Multiple Choice
Identify the graph as a LInear or Exponential Function.
Linear Function
Exponential Function
- 8. Multiple Choice
Which function below models the data table?
y = 3x + 6
y = 3(6)x
y = 6x + 3
y = 6(3)x
- 9. Multiple Choice
Your mother bought a car for $22,000. The car depreciates at a rate of 20% each year. How much is the car worth after 5 years? Round to the nearest cent.
$7208.96
$5474.04
$7040.00
$8156.28
- 10. Multiple Choice
Which of the following below represents an exponential decay?
An elevator descends at a rate of 24 feet per second
Money invested in a savings account grows at a yearly rate of 2.4%
A population of 150 bacteria doubles every minute
A car depreciates at a rate of 7.3% per year
- 11. Multiple Choice
Identify the table as a Linear or Exponential Function.
Linear Function
Exponential Function
- 12. Multiple Choice
Which exponential function best models the data table above?
y = 16(4)x
y = 4(2)x
y = 4(4)x
y = 16(2)x
- 13. Multiple Choice
Which equation represents the graph above?
y = 4(2)x
y = 2(1/4)x
y = 1/2(2)x
y = 2(4)x
- 14. Multiple Choice
The function y = 5(3)x models the growth of a bacteria culture.
What does the value 5 represent?
The initial value/y-intercept
The exponential pattern/base
The time in days
The rate of growth
- 15. Multiple Choice
The number of female nurses in a country can be predicted using the function F(x)=7,300 + 25x
The number of male nurses can be predicted using the function M(x) = 2,500(1.02)x
Which statement is true when x= 13?
Male nurses will be about 4400 more than the female nurses
Female nurses will be about 4400 more than the male nurses
Female nurses will be about 7625 more than the male nurses
Male nurses will be about 3234 more than the female nurses
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