Question

Choose the point which is a solution to the system of inequalities:

4x + 3y > 12
x – y < –2

Answer 1

If they give you a list of options, just check each one.
Look at the point, figure out what x and y are. Plug x and and y into each inequality to see if they give you a true statement.

Answer 2

what are your points?

Answer 3

(2, 1)

(–4, 9)

(–5, –6)

(3, 7)

Answer 4

Here's an example point:
(5,10)
x = 5 y =10
Check the first inequality.
4(5) + 3(10) >12 ?
20 + 30 > 12
50>12 so yes

Check the second inequality
(5) - (10) < -2 ?
-5 < -2, so yes.

Answer 5

Let us see your attempt for each point. We will help with any questions that come up.

Answer 6

hold on .. ima write them down my paper first

Answer 7

Kev, let her try it on her own.

Answer 8

so the answer is... ok I'll wait

Answer 9

for the (-4,9)
4x + 3y >12
x - y <-2
4(-4) + 3(9) > 12
-16 + 27 > 12
11 > 12
-4 - 9 < -2
13 < - 2
i dont think that -4, 9 is right tho O.o .. is it?

Answer 10

The answer is 3,7
4(3)+3(7)=33 true
3-7<-2

Answer 11

Wow, Kev. You're jumping the gun.

Answer 12

ohhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh

Answer 13

do you see the answer

Answer 14

the first three fail and are not true

Answer 15

i see it now thank you Kev thank you thank you and thanks smooth math guy a lot ....

Answer 16

just plug each one in turn and get the ansewr compare that with the equality and its either true or false

Answer 17

if false move on

Answer 18

Tati, you did that point correctly.
Plugging those points in gives you
11 > 12 and
-13 < -2
So, there would be one correct inequality and one incorrect. They both have to be true for the point to be a solution.

Answer 19

ohhh i see that

Answer 20

Do the same with the other points. If the point makes both inequalities true, then it is a solution =D