Chapter 8 Review

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

• Exponential Growth
• Exponential Decay
• Linear
• None

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

What is the y-intercept of the function?

• 2
• 3
• 1
• -2

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

• y=8(15,000)^x

• y=15,000(1 + .08)^x

  or y=15,000(1.08)^x

• y=15,000(0.92)^x

  or y=15,000(1 - .08)^x

• y=15,000(0.08)^x

What values of b make an exponential growth function?

• b > 0
• b <1
• b > 1
• 0 < b < 1

The growth factor for this table is 

• 2
• 4
• 12
• 144

The equation for this table is 

• y = 1(2^x)
• y = 1(12)^x

• y = 12x
• y = 12x + 1

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

• ^.08

• ^1.08

• .92

• 8

Find the exponential function that passes through points (0, 2) and (4, 512).

• y=2(4)^x

• y=2(3)^x

• y=4(2)²

• y=2(0.25)^x