All High School Math Resources
Example Questions
Example Question #1 : Graphing Exponential Functions
Find the -intercept(s) of .
This function does not cross the -axis.
To find the -intercept, set in the equation and solve.
Example Question #1 : Graphing Exponential Functions
Find the -intercept(s) of .
and
To find the -intercept(s) of , set the value equal to zero and solve.
Example Question #2 : Graphing Exponential Functions
Find the -intercept(s) of .
and
and
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 .
or
The function does not cross the -axis.
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 .