# What is the equation, in standard form, of a parabola that contains the following points (–2, 18), (0, 4), (4, 42)?

##### 1 Answer

Apr 21, 2018

#### Explanation:

The standard form of a quadratic equation is

Here, when

We have two more points with which to create two equations and two unknowns,

We can subtract 4 from both sides of these equations and divide the second equation by 2.

Now add the two equations together.

Substitute this value of

This makes our final equation