Question

Which graph is defined by the function given below? y=(x-2)(x+5)

Answer 1

Step 1: Foil to get y=x^2+3x-10

Step 2: The C of the equation is -10, which is the y-intercept (so the answer is graph A)

Just to check, you can find the x intercepts

x-2=0

x=2

x+5=0

x=-5