Question

Given that f(x) = x2 - 2x - 15,

a. Find the coordinates of the y-intercept

b. Find the coordinates of the x-intercepts

c. Find the coordinates of the vertex

d. Use the above information to sketch a graph of f(x)

Answer 1

a) (0; -15)

you just let x be equal to 0.

b) ( -5; 0) and (3;0)

you just let y/ f(x) equal to 0.

c)