SOLUTION: Which graph represents the function? f(x) = x(x + 2) Is my answer correct? The question and my answer are in the link here: https://prnt.sc/mm6m06

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Question 1134938: Which graph represents the function?
f(x) = x(x + 2)
Is my answer correct?
The question and my answer are in the link here: https://prnt.sc/mm6m06
Answer by MathLover1(20850) About Me  (Show Source):
You can put this solution on YOUR website!

correct
second graph in first row contains point (-1,-1) which is vertex
f%28x%29+=+x%28x+%2B+2%29..........in vertex form

f%28x%29+=+x%5E2+%2B+2x..........complete square
f%28x%29+=+%28x%5E2+%2B+2x%2B1%29-1
f%28x%29+=+%28x%2B1%29%5E2-1
->h=-1 and k=-1