# Precalculus : Graph Exponential Functions

## Example Questions

### Example Question #1 : Graph Exponential Functions

Choose the description below that matches the equation:

Exponential decay

Y-intercept at

Exponential growth

Y-intercept at

Exponential growth

Y-intercept at

Exponential growth

Y-intercept at

Exponential decay

Y-intercept at

Exponential growth

Y-intercept at

Explanation:

Exponential graphs can either decay or grow. This is based on the value of the base of the exponent. If the base is greater than , the graph will be growth. And, if the base is less than , then the graph will be decay. In this situation, our base is . Since this is greater than , we have a growth graph. Then, to determine the y-intercept we substitute . Thus, we get:

for the y-intercept.

### Example Question #2 : Graph Exponential Functions

Choose the description that matches the equation below:

Exponential decay

Exponential growth

Exponential decay

Exponential growth

Exponential decay

Y-intercept