Quiz Review? 7.1 - 7.4

Quiz Review? 7.1 - 7.4

Multiple Choice

Which equation matches the graph?

•  $y=2\left(3\right)^x$  

•  $y=2\left(\frac{1}{3}\right)^x$  

•  $y=3\left(2\right)^x$  

•  $y=3\left(0.5\right)^x$  

Multiple Choice

What is the range of the graph?

• $y<0$

• $y>0$

• All real numbers

Fill in the Blanks

What is the y-intercept of the function

 $y=2\left(0.4\right)^x$  

Multiple Choice

Is the function

 $y=2\left(0.4\right)^x$  showing growth or decay?

• growth

• decay

Multiple Choice

What key feature is different between the two functions?

 $f\left(x\right)=3\left(0.5\right)^x$  &  $h\left(x\right)=2\left(0.5\right)^x$  

• The y intercept

• The ratio

• One is growth, one is decay

Multiple Choice

Which equation matches the table?

• $y=0.5\left(2\right)^x$

• $y=1\left(0.5\right)^x$

• $y=2x+0.5$

• $y=\frac{1}{2}x+2$

Multiple Choice

Which equation matches the table?

• $y=4x$

• $y=2x$

• $y=4^x$

• $y=2^x$

Fill in the Blanks

You put $250 in a savings account that pays 6% interest compounded annually. How much money is in the account after 5 years? Round to the nearest cent

Fill in the Blanks

Jason buys a new car for $25,000. The value of the car depreciates by 15% each year. What is the value of the car after 3 years? Round to the nearest dollar.