Chapter 6 Exponential Equations and Functions

The compound interest formula is:
A = P(1 + r)^t

What does the A represent?

• The amount of interest earned.

• The amount of time that has passed.

• The total amount of money after a certain amount of time.

• I have no idea

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

• Exponential Growth

• Linear

• Exponential Decay

• None of the Abovee

Dave starts a savings account with an initial amount of $150. The account increases 35% each year? Which equations represents this scenario?

• y = 150(35)^x

• y = 150(1.35)^x

• y = 150(0.35)^x

• y = 35(1.150)^x

Describe the transformation(s) of the function when compared to its parent function.

• Translation up 2 units and translation right 1 unit

• Translation down 2 units and Translation left 1 unit

• Translation left 2 units and Translation up 1 unit

• Translation right 2 units and Translation down 1 unit

Write the function that represents the table.

What transformations have happened to f(x) = 2^x if the new equation is
 g(x) = -2^(x+3) -6

• It stayed the same

• reflects, up 3, left 6

• reflects, right 3, down 6

• reflects, left 3, down 6

Describe the transformation from the red line to the blue line

• Up 2

• Down 2

• Left 2

• Right 2

You borrowed $59,000 for 2 years at 11% which was compounded annually.  What total will you pay back?

• $13,693.90

• $1,363.90

• $72,693.90

• $73,793.90

Is the equation y=3^x linear, quadratic, or exponential?

• linear

• exponential

• quadratic

Which graph comparing time and dollars would be best represented by an exponential function?

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