SOLUTION: I just recently have learned how to find the vertex of a function. However, with this problem, the fraction ... confused me. :) I get half way through, then get entirely lost!
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Question 213988: I just recently have learned how to find the vertex of a function. However, with this problem, the fraction ... confused me. :) I get half way through, then get entirely lost!
Determine the vertex of each function by completing the square.
You can put this solution on YOUR website! Determine the vertex of each function by completing the square.
y= 8x^2 + -14x + -72
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Rewrite:
8x^2 - 14x = y + 72
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8(x^2 - (7/4)x + ?) = y + 8?
Complete the square:
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8(x^2 - (7/4)x + (7/8)^2)) = y + 8(7/8)^2
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8(x-(7/8))^2 = y + +8*(49/64)
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8(x-(7/8))^2 = y + (49/8)
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Vertex: ((7/8) , (-49/8))
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Cheers,
Stan H.
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