Question

Choose all correct answers. Which of the following are solutions of the system?

x < 3 and x + y < 5
Answer

(4, 2)

(2, 2)

(-1, 0)

(2, -1) Choose all correct answers. Which of the following are solutions of the system?

x < 3 and x + y < 5
Answer

(4, 2)

(2, 2)

(-1, 0)

(2, -1) @Mathematics

Answer 1

You have two requirements for the subset.
x < 3 and x +y <5

Because your answers are given in (x, y), break the requirements down into x and y.
x < 3
y < 5 - x

Then, it's a matter of plug and play

The first set (4, 2) fails the first check because 4 is not less than 3.

Go through the others and you'll find that the remainder all satisfy the requirements for the subset.