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Find the vertex of the graph of the equation y=-2x^2+8x-15+3x^2-6x+22.

 Apr 24, 2022
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 y= -2x^2+8x-15+3x^2-6x+22     rearrange  as

 

y = x^2 + 2x + 7

 

The x coordinate of  the  vertex     =   -2 / [ 2 * (1) ]    =  -1

 

The y coordinate is      (-1)^2  + 2(-1) + 7 =   6

 

cool cool cool

 Apr 24, 2022

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