511,004 views
32 votes
32 votes
Which point would not be a solution to the system of linear inequalities shownbelow?y < 20 +2y <-5T - 52

User Cmeerw
by
2.8k points

1 Answer

26 votes
26 votes

To answer this question, we will need to try out the points in the options.

The inequalities we are working with are as follows;

y < 2x + 2

and y ≤ -5/2x - 5 which can be rewritten as y + 5 ≤ -5/2x

Whatever points we are choosing should not satisfy both inequalities.

Let us start with the first point;

(-4, -8)

here x = -4 and y = -8

For the first inequality, we have

-8 < 2(-4) + 2

-8 < -8 + 2

-8 < -6

This is correct since in the real sense, -8 is less than -6

For the second inequality;

-8 + 5 ≤ -5/2(-4)

-3 ≤ -10

This is incorrect because -3 is greater than -10.

So since it does not work, then the point cannot be a solution to the system of linear inequalities

The correct answer is the point (-4,-8)

User Sinm
by
3.1k points