Question

The zeros of a parabola are -5 and -3. The point (0, 60) is on the graph as represented by the equation.

60=a(0+5)(0+3)

What is the value of a?

Answer 1

The value of 'a' is 4

Explanation:

To find 'a', we just have to simplify and make 'a' the subject of

`60 = a(0 + 5)(0 + 3)`

This gives us:

`60 = a(3)(5)`

This implies that:

`60 = 15a`

We divide both sides by 15 to get:

`a = (60)/(15)`

`a = 4`