Question

What is the line of symmetry for the parabola whose equation is y = -x^2 + x + 3?

1.) x=-1

2.) x= -1/2

3.) x= 1/2

Answer 1

same as before, compute
\[\huge -\frac{\color{blue}b}{2\color{red}a}\] with
\[\large \color{red}a=\color{red}{-1},\color{blue}b=\color{blue}1\]

Answer 2

So -1 divided by 2(-1) ? And that would be 3.) x= 1/2 ?

Answer 3

yes it would!

Answer 4

Thank you:)

Answer 5

yw

Answer 6

I just don't understand how you set it up

Answer 7

i am not sure what else to say other than the axis of symmetry is \[\large
x= -\frac{\color{blue}b}{2\color{red}a}\]for
\[\large y= \color{red}ax^2+\color{blue}bx+c\]

Answer 8

Thanks, again:)

Answer 9

yw