Question

Find the slope of a line parallel to a line containing points (3,-5) and(1,7)

Answer 1

Answer:

Required slope = - 6

Step-by-step explanation:

Parallel lines have same slope.

(x₁ , y₁) = (3 , -5)      &  (x₂ , y₂) = (1, 7)

$Slope = \frac{y_{2}-y_{1}}{x_{2}-x_{1}}$

        $= \frac{7 - [-5]}{1-3}\\\\=\frac{7+5}{1-3}\\\\=\frac{12}{-2}\\\\= -6$

Slope of the a line parallel to a line  = -6