Does \( (-40,45) \) make the equation \( y=-x \) true?
Not true, so \((-40, 45)\) does not make \(y = -x\) true.
Step 1 :Substitute \((x, y) = (-40, 45)\) into \(y = -x\).
Step 2 :Calculate \(45 = -(-40)\).
Step 3 :Not true, so \((-40, 45)\) does not make \(y = -x\) true.