Question

Which ordered pairs from the replacement set are solutions to the equation?

y = -2x + 9 ; Replacement Set {((-1, 11), (0, 8), (1, 7), (2, 5)}

Answer 1

test one by one all order pairs, for example :
y = -2x + 9 at point (0,8)
8 = -2(0) + 9
8 = 9 , this is false
try it for the other points