I would solve it for B, but that's just what I think. So you would do -12 time -2 which is 24, then subtract 24 from both sides so that you would get B=-31
Answer: The vertex of the parabola (quadratic function) is (-2,-4)
Fourth option: (-2,-4)
Solution:
y=x^2+4x
y=ax^2+bx+c; a=1, b=4, c=0
Vertex: V=(h,k)
h=-b/(2a)
h=-4/(2(1))
h=-4/2
h=-2
y=x^2+4x
k=y=h^2+4h
k=(-2)^2+4(-2)
k=4-8
k=-4
Vertex: V=(h,k)
Vertex: V=( -2, -4)
Answer:
yes
Step-by-step explanation:
Answer:
15 25 25 65
10 05 20 35
25 30 45 100
First column is 6th grade, second is 7th, third is 8th and the last column is total
It is 4x4 then divide that by 2 since a triangle is half of a square so 16 divided by 2 which is 8
