Extra Review for Checkpoint #10

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

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
• y=15,000(0.92)^x
• y=15,000(0.08)^x

In an exponential function, what does the 'a' represent? 

• SLOPE
• RATE OF CHANGE
• Y-INTERCEPT
• COMMON RATIO

What is the y-intercept of the function?

• 2
• 3
• 1
• -2

What type of function is f(x)=2(1/7)^x ?

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

What is the asymptote of the parent function y=2^x?

• x=0

• y=0

• x=2

• y=2

What is the Domain of this exponential function?

• y=1

• x=0

• All Real Numbers

• x>0

What is the Range of the function?

• 0 < y < 180

• y > 80

• All Real Numbers

• 0 < x < 6

Solve for x:
19.2 x - 15 = 7.5x + 8.4

• x = 15.3
• x = 23.4
• x = 2
• x = 0

Solve:
2(2x + 3) = -6(x + 9)

• 1.2
• 6
• -6
• 7.5