Question

The function f is given in three equivalent forms.

Which form most quickly reveals the zeros (or "roots") of the function?
Choose 1 answer:
f(x) = 1/2(x-5)^2-2
f(x)= 1/2(x -3) (x -7)
f(x) = 1/2x^2-5x+21/2
Write one of the zeros

Answer 1

khan

Explanation:

Answer 2

a) best form: (b) f(x)= 1/2(x -3) (x -7)

b) zeros: x=3, x=7

Explanation:

The factored form most quickly tells you the zeros of the function. The zeros are the values of x that make the factors zero: the opposite of the binomial's constant.

f(x)= 1/2(x -3)(x -7) reveals the zeros to be x=3 and x=7