# High School Math : Understanding Parabolic Functions

## Example Questions

### Example Question #1 : Understanding Parabolic Functions

Based on the figure below, which line depicts a quadratic function?

Possible Answers:

None of them

Purple line

Blue line

Green line

Red line

Correct answer:

Red line

Explanation:

A parabola is one example of a quadratic function, regardless of whether it points upwards or downwards.

The red line represents a quadratic function and will have a formula similar to .

The blue line represents a linear function and will have a formula similar to .

The green line represents an exponential function and will have a formula similar to .

The purple line represents an absolute value function and will have a formula similar to .

### Example Question #2 : Understanding Parabolic Functions

Which of the following functions represents a parabola?

Possible Answers:

Correct answer:

Explanation:

A parabola is a curve that can be represented by a quadratic equation.  The only quadratic here is represented by the function , while the others represent straight lines, circles, and other curves.