Question

100 Points!

Graph each function by addition of ordinates,


I dont need you to graph i only need to find the Key angles and points.


y = 2x^2 + x - 1

Answer 1

X-intercepts: 0.5 and -1

Vertex - (-1/4, -9/8)

Explanation:

Using factoring, we can get (2x-1) (x+1)

This gives us x-intercepts, .5 and -1

Vertex -

-b/2a

-1/4

Plug this into the equation and get -

(-1/4, -9/8)