1. yes

2x-y >10

if x=7 and y=2

2(7)-2>10

14-2>10

12>10

2.yes

x+3y≤8

if x=4 and y=-1

4+3(-1)≤8

4-3≤8

1≤8

3. No

y<4x-5

if x=0 and y=0

0<4(0)-5

0<0-5

0<-5

4. No

7x-2y≥6

if x=-3 and y=-8

7(-3)-2(-8)≥6

-21+16≥6

-5≥6

5. No

16-y>x

if x=-1 and y=9

16-9>-1

7>-1

6. No

-3x+y<-12

if x=0 and y=-5

-3(0)+(-5)<-12

0+(-5)<-12

-5<-12

7. Yes

9+x≥y

if x=-6 and y=3

9+(-6)≥3

3≥3

8. Yes

2y-2x≤14

if x=-3 and y=-3

2(-3)-2(-3)≤14

-6-(-6)≤14

0≤14

9. Yes

12x+y>5

if x=4 and y=12

12(4)+12>5

48+12>5

60>5

10. No

x+23y<2

if x=15 and y=1

15+23(1)<2

15+23<2

38<2