$y=ax^2+bx+c\\\\\text{Axis of symmetry:}\ x=\dfrac{-b}{2a}$

$\text{We have:}\\\\y=4x^2+16x-18\\\\a=4;\ b=16;\ c=-18\\\\x=\dfrac{-16}{2\cdot4}=\dfrac{-16}{8}=-2$

Answer: A.

6 0

3 years ago

Help i need the answer now!!!

sveticcg [70]

Answer:

hmm bro it's kinda blurry can u retake the pic? i will help u to solve it

4 0

2 years ago

HELP <br> Write an equation that represents the line.<br> Use exact numbers.

horrorfan [7]

Y=7/5+6.8

I believe it can a little more than 6.8 but either way this is correct

3 0

3 years ago