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What is the answer to this screenshot

What is the answer to this screenshot-example-1

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The correct solutions are (5,2) and (6,-1), making the correct answer (c).

The given linear inequalities are:


\(-3x + y < 1\)


\(x < 4\)

Let's evaluate the given answer choices:

a. (-1,4) and (-2,1):

For (-1,4):


\[ -3(-1) + 4 = 3 + 4 = 7 \]

The first inequality is not satisfied (7 is not less than 1). Therefore, (-1,4) is not a solution.

For (-2,1):


\[ -3(-2) + 1 = 6 + 1 = 7 \]

The first inequality is not satisfied (7 is not less than 1). Therefore, (-2,1) is not a solution.

b. (1,1) and (3,3):

For (1,1):


\[ -3(1) + 1 = -2 \]

The first inequality is satisfied (-2 is less than 1).

For (3,3):


\[ -3(3) + 3 = -6 \]

The first inequality is satisfied (-6 is less than 1).

c. (5,2) and (6,-1):

For (5,2):


\[ -3(5) + 2 = -13 \]

The first inequality is satisfied (-13 is less than 1).

For (6,-1):


\[ -3(6) - 1 = -19 \]

The first inequality is satisfied (-19 is less than 1).

Therefore, the correct solutions are (5,2) and (6,-1), making the correct answer (c).

User Yann Armelin
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