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1) Para que valores reais de x o ponto P (3x -6, 2x +4) pertence ao 4º quadrante?

User Hyunnie
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1 Answer

4 votes

Answer:

There are no real values of x for point P to belong to the 4 quadrant

Explanation:

The question in English is

To what real values ​​of x does the point P (3x -6, 2x +4) belong to the 4th quadrant?

we know that

A point in the fourth Quadrant has the x-coordinate positive and the y-coordinate negative

we have the point

P (3x-6, 2x+4)


3x-6 > 0 ----> inequality A ( x-coordinate must be positive)


2x+4 < 0 ---> inequality B ( y-coordinate must be negative)

Solve Inequality A


3x-6 > 0


3x > 6


x > 2 -----> (2,∞)

Solve Inequality B


2x+4 < 0


2x < -4


x < -2 ----> (-∞,-2)

The solution of the system is

(-∞,-2) ∩ (2,∞)

therefore

The system has no solution

There are no real values of x for point P to belong to the 4 quadrant

User Mrudult
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4.4k points