How do you write #-2(x-3)(x+1)# in vertex form and identify the vertex, y intercept and x intercept?
1 Answer
Jul 12, 2015
y = - 2(x - 3)(x + 1)
Explanation:
The 2 x-intercepts are: x1 = 3 and x2 = - 1
To find y-intercept, make x = 0 -> y = - 2(-3)(1) = 6
x coordinate of vertex:
y coordinate of vertex: y = f(1) = - 2(-2)(2) = 8
Vertex form
