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Which system of linear inequalities has the point [tex]$(3,-2)$[/tex] in its solution set?

A. [tex]y \ \textless \ -3[/tex]

B. [tex]y \leq \frac{2}{3}x - 4[/tex]


Sagot :

To determine which system of linear inequalities includes the point \((3, -2)\) in its solution set, let's evaluate whether the point satisfies each given inequality step-by-step.

First, consider the inequality:
[tex]\[ y < -3 \][/tex]

Plugging in the coordinates of the point \((3, -2)\):
[tex]\[ -2 < -3 \][/tex]

This statement is false because \(-2\) is not less than \(-3\).

Next, consider the inequality:
[tex]\[ y \leq \frac{2}{3} x - 4 \][/tex]

Plugging in the coordinates of the point \((3, -2)\):
[tex]\[ -2 \leq \frac{2}{3} \cdot 3 - 4 \][/tex]

Simplify the right-hand side:
[tex]\[ -2 \leq 2 - 4 \][/tex]
[tex]\[ -2 \leq -2 \][/tex]

This statement is true because \(-2\) is indeed less than or equal to \(-2\).

To conclude, the point \((3, -2)\) satisfies the second inequality \( y \leq \frac{2}{3}x - 4 \) but does not satisfy the first inequality \( y < -3 \).

So, the point \((3, -2)\) is in the solution set of the system represented by the second inequality:
[tex]\[ y \leq \frac{2}{3} x - 4 \][/tex]