SOLUTION: y=k(x-4)(x+2) The graph of the quadratic equation above, where k is a constant, has a vertex at point (a,b) in the xy-plane. Which of the following is equal to a?

SOLUTION: y=k(x-4)(x+2) The graph of the quadratic equation above, where k is a constant, has a vertex at point (a,b) in the xy-plane. Which of the following is equal to a?

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Question 1040252: y=k(x-4)(x+2)
The graph of the quadratic equation above, where k is a constant, has a vertex at point (a,b) in the xy-plane. Which of the following is equal to a?
Answer by josgarithmetic(39617) (Show Source): You can put this solution on YOUR website!
Vertex is between the zeros, being at .

The actual value for coordinate b would be unknown because the factor k is unknown.
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