Chapter 7 Exponent Review

Simplify a¹⁰ b⁹ / a² b⁴

• a¹² b¹³

• a⁸ b⁵

• a⁸ b⁶

• a¹⁴  b¹¹

Simplify:   x³y/xy⁵

• x²y⁴

• x³y⁴

• x²/y⁴

• x²/y⁵

(xy)³ =

• x³y³

• xy³

• x³y

• 3xy

(-a⁸b⁵)³ =

• -a²⁴b¹⁵

• a²⁴b¹⁵

• a⁵¹²b¹²⁵

• -a⁵¹²b¹²⁵

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

• SLOPE

• RATE OF CHANGE

• Y-INTERCEPT

• COMMON RATIO

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

Classify the model as Exponential GROWTH or DECAY.
A=1200(.85)⁶

• Growth

• Decay

Classify the model as Exponential GROWTH or DECAY.
A=10(1.01)³

• Growth

• Decay

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

• -1200

• -.15

• 6

• -6

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