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Which of the following points lie in the solution set to the following system of inequalities?
y < -3x + 3
y < x + 2
a.(1, -5)
b.(1, 5)
c.(5, 1)
d.(-1, 5)
please help
1 Answer
- 1 decade agoFavorite Answer
I think the easiest way to do this, is just to substitute the coordinates into the two inequalities and see if they satisfy both.
so for a. (1,-5)
first inequality, we get: -5 < -3+3=0
-5<0 which is true
second inequality, we get -5 < 3 which is also true.
So point a. lies in the solution set.
Similarly for the rest.
Hope this helps =)