marissabartoldo:
help
NerdyLizard:
Is this for a quiz?
marissabartoldo:
no homework
NerdyLizard:
And you are allowed outside help?
marissabartoldo:
yes
NerdyLizard:
Ok just checking One second
NerdyLizard:
With the given image I am unsure what the exact answer is. You may want to call someone else to help.
marissabartoldo:
@astrid1
NerdyLizard:
Actually, I figured it out. You have to solve the equation to find the x of the vertex for -b.
NerdyLizard:
The original equation: x=-b/2a When solved for b: 2ax=-b. Simply input a (which is given) and x (which we estimate to be 2.). Don't forget, this will give you the NEGATIVE of B this means you must multiply by -1 to get the actual b. :)
marissabartoldo:
wait so what is a?
NerdyLizard:
The equation is formed like this: ax^2+bx+c. If there is "no" a and the first x is negative that means that a = -1
marissabartoldo:
ok
marissabartoldo:
I got b=4
NerdyLizard:
As I have said before. I am unable to assist you with the final answer. If you followed the above process it should be right. :) (Unless I am a complete noob and messed up hehe)
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