Mathematics marissabartoldo:

help marissabartoldo: 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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