SOLUTION: https://gyazo.com/971e46f01b9b1bf1d971e425ebcd81b7 I need help with this please

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Question 1179013: https://gyazo.com/971e46f01b9b1bf1d971e425ebcd81b7
I need help with this please
Answer by MathLover1(20850) About Me  (Show Source):
You can put this solution on YOUR website!
sketch
f%28x%29=x%5E2-2x-> this is a parabola, make a table with several points and draw a parabola through
x|y
-2|8->f%28x%29=%28-2%29%5E2-2%28-2%29=4%2B4=8
-1|3->f%28x%29=%28-1%29%5E2-2%28-1%29=1%2B2=3
0|0->f%28x%29=0%5E2-2%280%29=0
1|-1->f%28x%29=%281%29%5E2-2%281%29=1-2=-1
2|0->f%28x%29=%282%29%5E2-2%282%29=4-4=0
draw inverse
recall: The inverse of a function has all the same points as the original function, except that the x's and y's have been reversed.
8|-2
3|-1
0|0
-1|1
0|2

sketch both on a graph: