Question

Given the function f(x) = x^2 + 8x + 15 find the following information





Given the function f(x) = x2 + 8x + 15 find the following information;

1) x-intercepts

2) y-intercept

3) axis of symmetry

4) Vertex

5) Domain and Range

Answer 1

1) you find the x-intercepts by solving
x^2 + 8x + 15 = 0
for x

Answer 2

2. y-intercept is found by substituting 0 for x and finding value of f(x)

Answer 3

3 to find the axis of symmetry and the vertex convert the function to vertex form
(x -a)^2 - b

Answer 4

the domain is the possible values of x and the range the possible values of f(x)