Let f(x)=-1/2x^2-3x+5/2

Question

Find:

1. The y intercept

2. The x intercept

3. Axis on symmetry

4. Vertex

Answer 1

The y-intercept is the F(x) value when x=0.

The x-intercept is the x values when F(x)=0

 

If I put this function in vertex form, you should be able to find the rest.

 

F(x) = (-1/2)(x² + 6x + 9) + (9/2) + (5/2)

 

F(x) = (-1/2)(x - 3)² + 7