Homework Help: Pre-Calculus

Posted by L.Bianchessi on Sunday, March 11, 2012 at 1:56am.

Find the maximum value, and where it occurs for eAch function.
G(x)= (square root -x^2+4x+12)

Pre-Calculus - Damon, Sunday, March 11, 2012 at 5:37am
the vertex of the parabola
y = -x^2 + x + 12

x^2 - x = -y + 12

x^2 - x + 1/4 = -y+ 12.25

(x-1/2)^2 = -1 (y-12.25)

vertex at (1/2 , 12.25)

there -x^2 + 4 x + 12.25 = -1/4+2+12.25
= 14
G = sqrt(14)

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