Which function has the same graph as x + y = 11? a. f(x) = -y + 11 b. f(x) = -x + 11 c. f(x) = x − 11 d. f(x) = y − 11

if the eqn of the parabola is f(x) = (x-4)(x+2), we need to mult. this out to find the coordinates of the vertex.

then f(x) = x^2 + 2x - 4x - 8, and f(x) = x^2 - 2x - 8.

one way in which you can find the vertex is to calculate x = -b / (2a).   here, that comes to

        )

x = = 1.   f(1) = 1^2 - 2(1) - 8 = - 9.   vertex is at (1, -9).

        2(1) 

find another point on the curve:   let x=0, for which y=-8.   then (0, -8) is on the curve.   plot the vertex and this point and draw a smooth parabola thru both.

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c. (3,2,6) is the answer.

555.99.

step-by-step explanation:

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the answer is d on edge

step-by-step explanation: