Math

What we need for this question is to calculate the y-coordinate of the vertex of the parabola.

First, let’s set equal to 0 and find the x-intercepts. As we can see, the equation is already in factored form, so it’s particularly easy for this one:

The values of x that satisfy this equation are and . The vertex will be located directly between these two points, so add them together and divide by 2 to find the x-midpoint:
 
The x-coordinate of the vertex is “1.5”. Therefore, we can plug this figure back into the original equation to find the corresponding y-coordinate at the vertex:

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