Question

Consider the graph of the following quadratic formula

y=-x^2-10x+24

what is the y-value of the vertex?

Answer 1

y=49

Explanation:

Answer 2

y-coordinate of vertex is

`- \frac{b {}^(2) - 4ac}{4a}`
Then:

`- \frac{( - 10) {}^(2) - 4( - 1)(24)}{4( - 1)}`

`- \frac{100 + 96} { - 4}`

`(196)/(4)`

`49`