Answer:
A and B are the answers.
Step-by-step explanation:
How to find the zeros:
1. Let y=0 to find the x-intercept(s).
0=(x−4)(x+2)
2. Switch sides.
(x−4)(x+2)
3. Solve for x.
When will (x−4)(x+2) equal zero?
When x−4=0 or x+2=0
Solve each of the 2 equations above.
x=4,−2
How to find the vertex:
You can easily find it on the graph, or you can get the equation in the form
1. y = ax^2 + bx + c.
2. Calculate -b / 2a. This is the x-coordinate of the vertex.
3. To find the y-coordinate of the vertex, just plug the value of -b / 2a into the equation for x and solve for y.
