Show how you know (5, 6.5) is or is not a solution to the equation y = - 1/2x + 9 above.

You would insert your coordinates to see if it is a solution.

x=5 y=6.5 So your new equation is

6.5 = - 1/2 (5) + 9

This is a solution because - 1/2 (5) is equal to - 2.5, and then - 2.5 + 9 is equal to 6.5