Question

The roots of the function f(x) = x2 – 2x – 3 are shown. What is the missing number?

Answer 1

3

Explanation:

cuz i said so lol

Answer 2

see below

Explanation:

f(x) = x^2 – 2x – 3

To find the roots, set the equation equal to zero

0 = x^2 – 2x – 3

Factor, what two numbers multiply to -3 and add to -2

-3 * 1 = -3

-3 + 1 = -2

0 = (x-3)( x+1)

Using the zero product property

x-3 =0 x+1 =0

x=3 x=-1