### All High School Math Resources

## Example Questions

### Example Question #1 : Graphing Exponential Functions

Find the -intercept(s) of .

**Possible Answers:**

This function does not cross the -axis.

**Correct answer:**

To find the -intercept, set in the equation and solve.

### Example Question #2 : Graphing Exponential Functions

Find the -intercept(s) of .

**Possible Answers:**

and

**Correct answer:**

To find the -intercept(s) of , set the value equal to zero and solve.

### Example Question #3 : Graphing Exponential Functions

Find the -intercept(s) of .

**Possible Answers:**

and

and

**Correct answer:**

and

To find the -intercept(s) of , we need to set the numerator equal to zero and solve.

First, notice that can be factored into . Now set that equal to zero: .

Since we have two sets in parentheses, there are two separate values that can cause our equation to equal zero: one where and one where .

Solve for each value:

and

.

Therefore there are two -interecpts: and .

### Example Question #4 : Graphing Exponential Functions

Find the -intercept(s) of .

**Possible Answers:**

or

The function does not cross the -axis.

**Correct answer:**

To find the -intercept(s) of , we need to set the numerator equal to zero.

That means .

The best way to solve for a funky equation like this is to graph it in your calculator and calculate the roots. The result is .