Need to find and correct error in the functiony=-9.5x^{2}-47.5x+63as shown.x=frac{-b}{2a*x}=frac{-47.5}{2(-9.5)*x}=frac{-47.5}{-19*x}=-(-2.5)x=2.5y=-9.5(2.5)^{2}-47.5(2.5)+63y=59.375-118.75+63y=-115.125

tinfoQ 2021-01-06 Answered

Need to find and correct error in the function y=9.5x247.5x+63 as shown.
x=b2a×x=47.52(9.5)×x=47.519×x=(2.5)x=2.5
y=9.5(2.5)247.5(2.5)+63y=59.375118.75+63y=115.125

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Expert Answer

Faiza Fuller
Answered 2021-01-07 Author has 108 answers

Identify the coefficients a,b, and c: a=9.5, b=47.5, c=63. substituted b=47.5 in the formula for finding the vertex.
Let's correct that error and find the correct solution.
x=b2a
x=47.52×(9.5)
x=47.519
x=2.5
y=9.5×(2.5)247.5×(2.5)+63
y=59.375+118.75+63
y=122.375 The vertex is (-2.5, 122.375).

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