Question

Which of the following ordered pairs is a solution to the inequality y > -x + 5?

(1, -10)

(0, 5)

(5, -1)

(1, 9)

Answer 1

try the points to see which one is true, example lets take the first one (1,-10)

y > -x + 5
-10 > - (1) + 5
-10 > 4 NOT TRUE, keep checking the others

Answer 2

Hello, first you want to plug in your x and y terms.
Lets take the first one. (x, y) = (1, -10): x = 1 and y = -10
So plug that into:
y > -x + 5

-10 > -1 + 5

-10 > 4.

This is false because negative ten is NOT greater than four.

Do the same thing for the rest of 'em.