Question

Given the functions f(x) = 4x2 − 1, g(x) = x2 − 8x + 5, and h(x) = –3x2 − 12x + 1, rank them from least to greatest based on their axis of symmetry.

Answer 1

g(x), h(x), f(x)
f(x), h(x), g(x)
g(x), f(x), h(x)
h(x), f(x), g(x)

Answer 2

Use \(x=-\frac{b}{2a}\) to find the symmetries, using \(ax^2+bx+c\) as reference,

For f(x), since b=0, x=0.
For g(x), \(x=-\frac{(-8)}{2(1)}=4\)
For h(x). \(x=-\frac{(-12)}{2(-3)}=-2\)
Rank them now

Answer 3

Making it D?

Answer 4

Yes

Answer 5

can you help with another?

Answer 6

Just post them