Anyone know what the vertex would be ?

Step-by-step explanation:

The graph of the parabola passes through the points (-1,0), (0,-1) and (1,4).

Let be the equation of the parabola. Substitute the coordinates of the points:

Substitute into the first and third equations:

Add them:

Hence,

Find the vertex:

So, the vertex has coordinates

30 units^2

step-by-step explanation:

area is l × w

the length is 3

and the width is 10

3 × 10= 30 units squared

a. she will receive a refund of $278.

step-by-step explanation: