Answer:
Step-by-step explanation:
Second bullet point
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:
x = 32
Step-by-step explanation:
x/4 = 8
<=> x = 8 . 4
<=> x = 32
I only know D. but I'll try to figure out the rest too. D. 9 years old
