SOLUTION: How can you tell if a point is on graph?

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Question 174329This question is from textbook algebra 1
: How can you tell if a point is on graph? This question is from textbook algebra 1

Answer by Mathtut(3670) About Me  (Show Source):
You can put this solution on YOUR website!
you mean how do you tell if a point is a solution to a given or derived equation. Plug it in and see if it makes the equation a true statement. If it does it is a solution on the graph of that equation
:example y=2x-3.....point (1,-1)
:
plug that point in
-1=2(1)-3
-1=-1 therefore this point is on the graph of y=2x-3
:
graph%28300%2C300%2C-10%2C10%2C-10%2C10%2C2x-3%29