Question

* 20 points * help me please.?????........???!

Answer 1

`y=ax^2+bx+c`

A parabola is open up if a > 0.
The vertex formula:
`y=a(x-h)^2+k`
(h; k) - the coordinates of the vertex

`B.\ y=x^2+10x+24=x^2+2x\cdot5+24=x^2+2x\cdot5+5^2-5^2+24=(x+5)^2-1`
Therefore h = -5 < 0
Answer: B. y = x² + 10x + 24.