The graph of quadratic function is shown below Find a possible formula for the function (x+2)(x-5)

Question

The graph of quadratic function is shown below Find a possible formula for the function (x+2)(x-5)

Answer 1

Let's FOIL the factors...

 (x+2)(x-5)=x²+2x-5x-10...FOIL factored

                                           expression

                =x²-3x-10........combine like terms

 

So, x²-3x-10=0 is in Standard Form

A=1, B=-3, C=-10

 

Or can be expressed as...

y=x²-3x-10, f(x)=x²-3x-10

 

Your graph is not included.