jamiesoftball19 jamiesoftball19

20-12-2019
Mathematics

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Find the vertex of the graph of the function.
f(x) = 2x2 - 8x + 9

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Yang100 Yang100

20-12-2019

Answer:

(2, 1).

Step-by-step explanation:

f(x)=2x^2-8x+9

Find -b/2a first, it's -(-8)/2(2)=8/4=2.

Then find the y-coordinate of the vertex.

2(2)^2-8(2)+9=2(4)-16+9=8-16+9=-8+9=1

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