Question

Which point is a solution to the system of inequalities:
2x+y<5
2x-y>5

A. (-4,4)
B. (4,4)
C. (4,-4)
D. (-4,-4)

Answer 1

http://www.wolframalpha.com/. it will solve for variable, and show steps :)

Answer 2

2x+y<5
2(-4) + 4 < 5

-8 + 4 < 5

-4 < 5

-4 IS less than 5
________________________

2(-4) -(4) >5

-8 -4 > 5

-12 isn't greater than 5 so its not A :3

Try the rest on your own :)

Answer 3

Is it D?? (:

Answer 4

http://www.wolframalpha.com/will show u

Answer 5

2x+y<5

2(-4) +(-4) < 5

-8 -4

-12 is less than 5
________________________
2(-4) -(-4) >5

-8 + 4 > 5

-4 > 5

-4 isn't greater than 5

Try C

Answer 6

Oh okay thank you!!!!! (:

Answer 7

Try it! can you show mee

Answer 8

Ugh... well didn't you already? lol I have so much to do.... :/

Answer 9

No, I guesses, which happen to be right.

Answer 10

guessed*

Answer 11

hmm.... So it is C??? lol

Answer 12

Ya