Question

What is the vertex of `y= x^2-9x+14`?

Answer 1

(4.5,-4.9)

Explanation:

`ax^2+bx+c` is the general quadratic equation and `-b/(2a)` will give the X coordinate of the line of symmetry/the maximum or minimum point.

Substitute this value into the equation to find the `y` value

`x^2-9x+14` `=>`. `(--9)/2` =`9/2` =4.5

`(4.5)^2-9xx4.5+14`

=-4.9