Question

Axis of symmetry for f(x) = -2x2 + 20x -42

Answer 1

Answer: X=5

Explanation:

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Answer 2

For the function
`f(x)=2x^2 +20x-42`

We can use the formula for the axis of symetry, which is
`x= (-b)/(2a)`

With the values substituted, we get...


`(-20)/(2(-2)) =5`

Therefore the axis of symmetry is
`x=5`