kaisonmomma kaisonmomma

25-04-2018
Mathematics

contestada

What is the axis of symmetry for the graph of y – 4x = 7 – x2 ?

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nickdaurelio2 nickdaurelio2

25-04-2018

y - 4 x = 7 - x²
y = - x ² + 4 x + 7 ( this is a quadratic function )
x = - b / 2 a, where: a = - 1 and b = 4
x = - 4 / ( - 2 ) = 2
Answer:
The axis of symmetry for the graph is x = 2

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