Question

Given the standard form, write the intercept form.

f(x)=x2−8x+15

Answer 1

f(x) = (x -3)(x -5)

Explanation:

"Intercept form" is the same as "factored form." That is, you're being asked to factor the polynomial.

Factors of 15 that sum to -8 are ...

15 = (-3)(-5)

These are the constants in the binomial factors. The equation can be written as ...

f(x) = (x -3)(x -5)