Question 974252
Rewrite the following equations in vertex form:
Y=x^2-9x+20
x^2-9x = y-20
Complete the square to get:
x^2 - 9x + (9/2)^2 = y - (80/4) + (81/4)
(x-(4.5))^2 = y + (1/4)
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Y=X^2-7x-8
x^2 - 7x = y+8
Complete the square to get:
x^2 - 7x + (7/2)^2 = y + (32/4) + (48/4)
(x-3.5)^2 = y+20
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Y=X^2+4x-9
I'll leave this to you.
Cheers,
Stan H.
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