How would I simplify this quadratic equation:

y=-15/20.25(x^2+3x+2.25)+0

This is my work already done the original equation I was given but I need help simplifying the equation I have found.

1 answer

what do you mean simplify? You can distribute the fraction, and you get

-15/20.5 = 0.73

so you could write

-.73x^2 - 2.20x - 1.65

but that's only approximate. SO, again, what do you mean by "simplify"?

I will note that x^2+3x+2.25 = (x+1.5)^2 if that helps

You have the vertex form of a quadratic function. The vertex is at (-1.5,0)