Griffin Kelley
09/29/2023 · Primary School

1. Determine si la recta , \( \quad \) bos pares de puntos es creciente o decreciente. a. \( (-1,-1)(1 \), b. \( (-2,4)(1,-2) \) c. \( (-2,-3)(1,3) \) d. \( (1,3)(2,1) \)

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Para determinar si una recta es creciente o decreciente, se debe calcular la pendiente de la recta. La pendiente \( m \) se calcula usando la fórmula \( m = \frac{y_2 - y_1}{x_2 - x_1} \), donde \( (x_1, y_1) \) y \( (x_2, y_2) \) son dos puntos de la recta. a. Para los puntos \( (-1,-1) \) y \( (1,1) \): \[ m = \frac{1 - (-1)}{1 - (-1)} = \frac{2}{2} = 1 \] La pendiente es 1, lo que indica que la recta es creciente. b. Para los puntos \( (-2,4) \) y \( (1,-2) \): \[ m = \frac{-2 - 4}{1 - (-2)} = \frac{-6}{3} = -2 \] La pendiente es -2, lo que indica que la recta es decreciente. c. Para los puntos \( (-2,-3) \) y \( (1,3) \): \[ m = \frac{3 - (-3)}{1 - (-2)} = \frac{6}{3} = 2 \] La pendiente es 2, lo que indica que la recta es creciente. d. Para los puntos \( (1,3) \) y \( (2,1) \): \[ m = \frac{1 - 3}{2 - 1} = \frac{-2}{1} = -2 \] La pendiente es -2, lo que indica que la recta es decreciente.

Quick Answer

a. Creciente b. Decreciente c. Creciente d. Decreciente
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