Respuesta :
for it to be a solution, it has to satisfy both inequalities.
using (5,-2)...x = 5 and y = -2
4x + y > 3
4(5) - 2 > 3
20 - 2 > 3
18 > 3.....correct
x - y > 2
5 - 2 > 2
3 > 2....correct
solution is (5,-2)
using (5,-2)...x = 5 and y = -2
4x + y > 3
4(5) - 2 > 3
20 - 2 > 3
18 > 3.....correct
x - y > 2
5 - 2 > 2
3 > 2....correct
solution is (5,-2)
Answer:
Option D.
Step-by-step explanation:
The given system of inequalities are
[tex]4x+y>3[/tex]
[tex]x-y>2[/tex]
We need to find a solution for the following system of inequalities.
Check each point by these inequalities.
For (-2,-2)
[tex]4(-2)+(-2)>3\Rightarrow -10>3[/tex] False
So, (-2,-2) is not included in the solution set.
For (1,-5)
[tex]4(1)+(-5)>3\Rightarrow -1>3[/tex] False
So, (1,-5) is not included in the solution set.
For (0,0)
[tex]4(0)+(0)>3\Rightarrow 0>3[/tex] False
So, (0,0) is not included in the solution set.
For (5,-2)
[tex]4(5)+(-2)>3\Rightarrow 18>3[/tex] True
[tex](5)-(-2)>2\Rightarrow 7>2[/tex] True
Both inequalities are true for the point (5,-2). So, the point (5,-2) is a solution for the following system of inequalities
Therefore, the correct option is D.