For
y=ax²+bx+c
the x value of the axis of symmetry is -b/(2a)
so test them
A., -b/(2a)=-(-8)/(2*-2)=8/-4=-2, yep
B. -b/(2a)=-2/(2*1/2)=-2/1=-2, yep
C. -b/(2a)=-(-16)/(2*4)=16/8=2, nope, need -2
D. -b/(2a)=-12/(2*3)=-12/6=-2, yep
answer is C
Answer:
Step-by-step explanation:
search up 90 cents in the form of x for b.
Hello,
A
quadratic trem= 4x²-4x²=0
linear terms=4x-x=3x
Constant term =1*(-1)=-1
y
quadratic trem= -15x²
linear terms=-15x -18x=-33x
Constant term =3*(-6)=-18
20 - (3 x 2 cubed - 5 ) The Answer Is 1
Answer:
i don't know can you help me please.