SOLUTION: Determine the x-coordinate at which the maximum/ or minimum occurs for the function f(x) = -3x^2 + 30X -30 Also find the coordinates of the vertx.

Question 1026727: Determine the x-coordinate at which the maximum/ or minimum occurs for the function f(x) = -3x^2 + 30X -30 Also find the coordinates of the vertx.
Answer by Boreal(15235) (Show Source): You can put this solution on YOUR website!
f(x) = -3x^2 + 30X -30
x coordinate of vertex is -b/2a= -30/-6 or 5 and it is a maximum, because the coefficient of the square term is minus.
f(x)=-75+150-30=45.
(5,45) is the maximum.

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