Question

F(x)=-x^2+8x-14 using quadratic formula

Answer 1

`x=4-√(2)` or
`x=4+√(2)`

Explanation:

Plug in given values of a, b, and c into the quadratic formula and solve for x:

`x=\frac{-b±\sqrt{b^(2)-4ac } }{2a}`

`x=\frac{-8±\sqrt{8^(2)-4(-1)(-14) } }{2(-1)}`

`x=(-8±√(64-56 ) )/(-2)`

`x=(-8±√(8) )/(-2)`

`x=(-8±2√(2) )/(-2)`

`x=4±-√(2)`

Therefore, the roots are
`x=4-√(2)` or
`x=4+√(2)`

Answer 2

Were you looking for the x and y intercepts? The question is very misleading.

If you were the x intercepts are (4-√2,0), (4+√2,0)

And the y intercept is (0,−14)

If you did not mean this in your question please specify what you meant.