Question

Which of the following points lie in the solution set to the following system of inequalities?

y x - 5
y -x - 4

Answer 1

(1, 10)

(-1, 10)

(10, 1)

(1, -10)

Answer 2

I know its not (1.10)

Answer 3

I don't see any inequality symbols in your equations

Answer 4

i am not understanding ur question... the way U wrote the equations....

Answer 5

oops its

y< x - 5
-

y<-x - 4
-

Answer 6

well, an easy way to do this is to test each point in your given answer and see if you get a contradiction

Answer 7

i m too getting same answer.... you are correct @rebecca1233

Answer 8

yeah (1,10) can't be a solution to this system.

Answer 9

keep going with the other three points until one works :)

Answer 10

wha is it

Answer 11

you just want the answer?

Answer 12

im stuck

Answer 13

ok. try (-1,10) next. Plug in x=-1 and y=10 into each equation. what do you get?

Answer 14

it worked for me

Answer 15

in the first equation you get:\[10 \le (-1)-5\]this gives\[10 \le -6\]is 10 less than or equal to -6?

Answer 16

no

Answer 17

correct. so (-1,10) is not a solution to this system.

Answer 18

ahh..

Answer 19

so lets try (10,1)

Answer 20

ok. if it works in the first equation you still have to try the second one. It has to work in both equations for it to be a solution.

Answer 21

it doesnt work

Answer 22

If the point doesn't give you a correct relation in either equation then you know it isn't a solution

Answer 23

ir doesnt work

Answer 24

it works in the first equation but not the second, right?

Answer 25

yes

Answer 26

did u try it to just make sure

Answer 27

ok. then you know it must be the last point...but check it to make sure

Answer 28

yeah I tried (10,1). it isn't a solution as you said

Answer 29

so its the last option :)