Error Analysis Micah found the vertex for the function y = -9.5x2 – 47.5x + 63 as shown.
b
2a
47.5
X=
2(-9.5)
47.5
-19
x = -(-2.5)
x = 2.5
y = -9.5(2.5)2 – 47.5(25) + 63
y = -59.375 - 118.75 + 63
y = -115.125
Find and correct Micah's error.

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