Question

The vertex of the function x2 + 6x − 16 = 0 is (-3, -25).
Answer True False

Answer 1

@artofspeed help

Answer 2

@yummydum Help?

Answer 3

It true! @yummydum

Answer 4

do \(\large{x={-b\over2a}}\) to find the x value of the vertex:\[{-6\over2(1)}~~~~\implies~~~~{-6\over2}~~~~\implies~~~~{x=-3}\]now put that into the polynomial \( x^2 + 6x − 16 \):\[ x^2 + 6x − 16~~~~\implies~~~~(-3)^2+6(-3)-16\]\[9-18-16\]\[y=-25\]
so yes the vertex is at (-3,-25), True

Answer 5

Thanks! (:

Answer 6

yup :)