maleekh2o
maleekh2o
20-04-2017
Mathematics
contestada
vertex for the function y= -2x^2+8x-5
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ghanami
ghanami
22-04-2017
hello :
-2x²+8x-5 = -2(x²-4x+5/2)
= -2(x²-2(2)(x)+2²-2² +5/2)
= -2 ( (x-2)² -3/2)
-2x²+8x-5 = -2(x-2)² +3
the vertex is the point A(2,3)
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