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# Help. I am confused on this question.

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The graph of the parabola defined by the equation y=-(x+1)^2+1 is shifted 1 unit to the right, then shifted 5 units down, then rotated 180 degrees about its vertex. The resulting parabola has zeros at x=a and x=b, where \(b\ge{a}\). What is b-a?

I need help. PLZ.

Aug 11, 2019

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Here I have built the graph for you.

You can work it out from the picture.

https://www.desmos.com/calculator/bddsvvz8va

You should learn to use Desmos graphing calculator. It is a brilliant tool!

Plus it is free and not hard to use.

Aug 11, 2019
edited by Melody  Aug 11, 2019
#2
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THX I never figured out how to use the desmose graphing calculator. but THX for the help.

Aug 11, 2019
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It is worth presevering with.

You do have to know what equation to put in of course.

If you want to move a graph left (neg direction) by 3 units you replace x with x+3       (it will move in the neg direction)

If you want to move a graph right (pos direction) by 4 units you replace x with x-4

If you want to move a graph up 5 units you replace y with y-5

If you want to move a graph down 6 units you replace y with y+6

It is that simple!

Melody  Aug 11, 2019