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Anton [14]
3 years ago
13

Which system of inequalities has a solution set that is a line?

Mathematics
2 answers:
Korolek [52]3 years ago
7 0

We're going to solve each of the systems to determine the solution.

<u>System 1</u>

x+y \geq  3\\ x+y \leq  3

using a graph tool

the solution is the line x+y=3

see the attached figure N 1

<u>System 2</u>

x+y \geq  -3\\ x+y \leq  3

using a graph tool

the solution is the shaded area

see the attached figure N 2

<u>System 3</u>

x+y >  3\\ x+y <  3

using a graph tool

The system has no solution

see the attached figure N 3

<u>System 4</u>

x+y >  -3\\ x+y <  3

using a graph tool

the solution is the shaded area

see the attached figure N 4

therefore

<u>the answer is</u>

<u>System 1</u>

x+y \geq  3\\ x+y \leq  3



Sloan [31]3 years ago
7 0

Answer:

The system of inequality that has a solution set that is a line is:

x+y\geq 3\\\\x+y\leq 3

Step-by-step explanation:

We know that if:

a\leq b

and

a\geq b

Then the resulting equation from both the inequalities is:

                               a=b

Hence, from the option (A) we have:

x+y\geq 3--------(1)

and x+y\leq 3-------------(2)

Hence, the equation that is resulting from the above system of inequalities is:

x+y=3

( Since, the inequality (1) is a solid straight line passing through the point (0,3) and (3,0) and the shaded region is away from the origin, above the line.

and from inequality (2) we get a solid straight line passing through the point (0,3) and (3,0) and the shaded region is towards the origin, below the line )

Hence, the common region that satisfy from both the inequality is a line:

              x+y=3

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