Question

tell whether the given equation has the ordered pairs as a solution: y=x-4 ( 5,1): y=x+8(8,0)

Answer 1

the way to do these is to put in x = 5 and y = 1 for the first expression, y = x - 4, and see if it is true. If it is, then (5,1) is a solution. If you get something silly like 1=2 or 3=10 or whatever, then (5,1) is NOT a solution.