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

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

cwrw238 · Answer

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

cwrw238 · Answer

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

cwrw238 · Answer

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

cwrw238 · Answer

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