Question

Which of the following ordered pairs is a solution to the inequality y less than or greater to -2x + 8?

(0, -4)

(5, -1)

(7, 0)

(9, 1)

Answer 1

y <= -2x + 8

Answer 2

y <= -2x + 8
lets start subbing....
(0,-4)
-4 <= -2(0) + 8
-4 <= 0 + 8
-4 <= 8 (true)

(5,-1)
-1 <= -2(5) + 8
-1 <= -10 + 8
-1 <= -2 (false)

(7,0)
0 <= -2(7) + 8
0 <= -14 + 8
0 <= - 6 (false)

(9,1)
1 <= -2(9) + 8
1 <= -18 + 8
1 <= - 10 (false)

Answer 3

do you understand how I did that ?

Answer 4

In a solution set, the first number is x and the second number is y....(x,y)
I just subbed the number into the inequality and found which one was true.

Answer 5

Yeah sorry i didnt see your comment

Answer 6

did you find the awnser??