Topic 6 Review

The equation f(x) models the decay of the worth of a car over x years. How much will the car be worth after 5 years?

 $f\left(x\right)=15,000\left(.85\right)^x$  

• About $6,700

• About $6,100

• About $6,800

• About $6,000

What is the y-intercept and asymptote of the graph of

 $f\left(x\right)=-4-2\left(.15\right)^x$  

• (0,-6)

• (0,1)

• (0,-4)

• y=-2

• y=-4

The shark population of 15 grows by 12% annually. What is the equation for the monthly growth rate?

• $f\left(x\right)=15\left(1.12\right)^x$

• $f\left(x\right)=15\left(1.00949\right)^x$

• $f\left(x\right)=15\left(1.00949\right)^{12x}$

• $f\left(x\right)=15\left(1.12\right)^{12x}$

Solve the log
 $\log_2\left(3\right)+\log_2\left(x+2\right)=4$  

Which is true about $f\left(x\right)=\log_3\left(x+2\right)-3$  

• The graph moves right 2

• The graph moves left 2

• The graph moves down 3

• The graph moves up 2

• The graph moves left 3