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In the coordinate plane, quadrilateral ๐‘ƒ๐‘„๐‘…๐‘† has coordinates ๐‘ƒ(-4,2), ๐‘„(0,5), ๐‘…(7,4), and ๐‘†(3,1). Which of the following statements is true about quadrilateral ๐‘ƒ๐‘„๐‘…๐‘†?ResponsesBecause the slope of ๐‘ƒ๐‘„ยฏ is equal to the slope of ๐‘†๐‘…ยฏ and the slope of ๐‘„๐‘…ยฏ is equal to the slope of ๐‘ƒ๐‘†ยฏ, ๐‘ƒ๐‘„ยฏโˆฅ๐‘†๐‘…ยฏ and ๐‘„๐‘…ยฏโˆฅ๐‘ƒ๐‘†ยฏ. Therefore, quadrilateral ๐‘ƒ๐‘„๐‘…๐‘† is a parallelogram.Answer A: Because the slope of line segment P Q is equal to the slope of line segment S R and the slope of line segment Q R is equal to the slope of line segment P S , line segment P Q is parallel to line segment S R and line segment Q R is parallel to line segment P S . Therefore, quadrilateral P Q R S is a parallelogram.ABecause the slope of ๐‘ƒ๐‘„ยฏ is the opposite of the slope of ๐‘†๐‘…ยฏ and the slope of ๐‘„๐‘…ยฏ is the opposite of the slope of ๐‘ƒ๐‘†ยฏ, ๐‘ƒ๐‘„ยฏโˆฅ๐‘†๐‘…ยฏ and ๐‘„๐‘…ยฏโˆฅ๐‘ƒ๐‘†ยฏ. Therefore, quadrilateral ๐‘ƒ๐‘„๐‘…๐‘† is a parallelogram.Answer B: Because the slope of line segment P Q is the opposite of the slope of line segment S R and the slope of line segment Q R is the opposite of the slope of line segment P S , line segment P Q is parallel to line segment S R and line segment Q R is parallel to line segment P S . Therefore, quadrilateral P Q R S is a parallelogram.BBecause the slope of ๐‘ƒ๐‘…ยฏ is not the opposite of the slope of ๐‘„๐‘†ยฏ, ๐‘ƒ๐‘…ยฏ is not perpendicular to ๐‘„๐‘†ยฏ. Therefore, quadrilateral ๐‘ƒ๐‘„๐‘…๐‘† is not a parallelogram.Answer C: Because the slope of line segment P R is not the opposite of the slope of line segment Q S , line segment P R is not perpendicular to line segment Q S . Therefore, quadrilateral P Q R S is not a parallelogram.CBecause the slope of ๐‘ƒ๐‘…ยฏ is not the opposite reciprocal of the slope of ๐‘„๐‘†ยฏ, ๐‘ƒ๐‘…ยฏ is not perpendicular to ๐‘„๐‘†ยฏ. Therefore, quadrilateral ๐‘ƒ๐‘„๐‘…๐‘† is not a parallelogram.

Question

In the coordinate plane, quadrilateral ๐‘ƒ๐‘„๐‘…๐‘† has coordinates ๐‘ƒ(-4,2), ๐‘„(0,5), ๐‘…(7,4), and ๐‘†(3,1). Which of the following statements is true about quadrilateral ๐‘ƒ๐‘„๐‘…๐‘†?ResponsesBecause the slope of ๐‘ƒ๐‘„ยฏ is equal to the slope of ๐‘†๐‘…ยฏ and the slope of ๐‘„๐‘…ยฏ is equal to the slope of ๐‘ƒ๐‘†ยฏ, ๐‘ƒ๐‘„ยฏโˆฅ๐‘†๐‘…ยฏ and ๐‘„๐‘…ยฏโˆฅ๐‘ƒ๐‘†ยฏ. Therefore, quadrilateral ๐‘ƒ๐‘„๐‘…๐‘† is a parallelogram.Answer A: Because the slope of line segment P Q is equal to the slope of line segment S R and the slope of line segment Q R is equal to the slope of line segment P S , line segment P Q is parallel to line segment S R and line segment Q R is parallel to line segment P S . Therefore, quadrilateral P Q R S is a parallelogram.ABecause the slope of ๐‘ƒ๐‘„ยฏ is the opposite of the slope of ๐‘†๐‘…ยฏ and the slope of ๐‘„๐‘…ยฏ is the opposite of the slope of ๐‘ƒ๐‘†ยฏ, ๐‘ƒ๐‘„ยฏโˆฅ๐‘†๐‘…ยฏ and ๐‘„๐‘…ยฏโˆฅ๐‘ƒ๐‘†ยฏ. Therefore, quadrilateral ๐‘ƒ๐‘„๐‘…๐‘† is a parallelogram.Answer B: Because the slope of line segment P Q is the opposite of the slope of line segment S R and the slope of line segment Q R is the opposite of the slope of line segment P S , line segment P Q is parallel to line segment S R and line segment Q R is parallel to line segment P S . Therefore, quadrilateral P Q R S is a parallelogram.BBecause the slope of ๐‘ƒ๐‘…ยฏ is not the opposite of the slope of ๐‘„๐‘†ยฏ, ๐‘ƒ๐‘…ยฏ is not perpendicular to ๐‘„๐‘†ยฏ. Therefore, quadrilateral ๐‘ƒ๐‘„๐‘…๐‘† is not a parallelogram.Answer C: Because the slope of line segment P R is not the opposite of the slope of line segment Q S , line segment P R is not perpendicular to line segment Q S . Therefore, quadrilateral P Q R S is not a parallelogram.CBecause the slope of ๐‘ƒ๐‘…ยฏ is not the opposite reciprocal of the slope of ๐‘„๐‘†ยฏ, ๐‘ƒ๐‘…ยฏ is not perpendicular to ๐‘„๐‘†ยฏ. Therefore, quadrilateral ๐‘ƒ๐‘„๐‘…๐‘† is not a parallelogram.

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Solution

Para determinar cuรกl de las afirmaciones es verdadera sobre el cuadrilรกtero PQRS, primero debemos calcular las pendientes de los segmentos de lรญnea PQ, SR, QR y PS.

  1. Pendiente de PQ:

    • Coordenadas de P: (-4, 2)
    • Coordenadas de Q: (0, 5)
    • Fรณrmula de la pendiente: m=y2โˆ’y1x2โˆ’x1 m = \frac{y_2 - y_1}{x_2 - x_1}
    • Pendiente de PQ: mPQ=5โˆ’20+4=34 m_{PQ} = \frac{5 - 2}{0 + 4} = \frac{3}{4}
  2. Pendiente de SR:

    • Coordenadas de S: (3, 1)
    • Coordenadas de R: (7, 4)
    • Pendiente de SR: mSR=4โˆ’17โˆ’3=34 m_{SR} = \frac{4 - 1}{7 - 3} = \frac{3}{4}
  3. Pendiente de QR:

    • Coordenadas de Q: (0, 5)
    • Coordenadas de R: (7, 4)
    • Pendiente de QR: mQR=4โˆ’57โˆ’0=โˆ’17 m_{QR} = \frac{4 - 5}{7 - 0} = \frac{-1}{7}
  4. Pendiente de PS:

    • Coordenadas de P: (-4, 2)
    • Coordenadas de S: (3, 1)
    • Pendiente de PS: mPS=1โˆ’23+4=โˆ’17 m_{PS} = \frac{1 - 2}{3 + 4} = \frac{-1}{7}

Ahora, comparamos las pendientes:

  • La pendiente de PQ (34 \frac{3}{4} ) es igual a la pendiente de SR (34 \frac{3}{4} ).
  • La pendiente de QR (โˆ’17 \frac{-1}{7} ) es igual a la pendiente de PS (โˆ’17 \frac{-1}{7} ).

Dado que las pendientes de PQ y SR son iguales, y las pendientes de QR y PS son iguales, podemos concluir que:

Respuesta A: Porque la pendiente de PQ es igual a la pendiente de SR y la pendiente de QR es igual a la pendiente de PS, PQ es paralelo a SR y QR es paralelo a PS. Por lo tanto, el cuadrilรกtero PQRS es un paralelogramo.

This problem has been solved

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