A quadratic function that has zerosp and q can be written as y=a(x−p)(x−q). With this in mind, we can write a quadratic function with zeros 8 and 11.y=a(x−8)(x−11)
We want to write the function in standard form. For simplicity we will set the leading coefficient, a=1. Let's substitute 1 for a in y=a(x−8)(x−11), and simplify.