Question

Which of the following ordered pairs is not a solution to the inequality y > -2x + 1?

(0, 6)

(0, 2)

(-1, 9)

(1, -3)

Answer 1

just plug in x and solve. if the y component is the same, it's a correct answer.

Answer 2

you have y>-2x+1 so just check the points and see if they make sense
(0,6) x=0 and y =6
6>-2*0+1=1
6>1 this is true, so go to the next point
(0,2) x=0 y =2
2>-2*0+1=1
2>1 so this makes sense go to the next one
(-1,9) x = -1 y = 9....can you finish?