Question

Line AB contains points A (3, −2) and B (1, 8). The slope of line AB is

−5

-1/5

1/5

5

Answer 1

given the points P(a,b) and Q(c,d) then the slope of the line PQ would be
\[\large m=\frac{b-d}{a-c} \]

Answer 2

@helder_edwin i dont understad?

Answer 3

ok. see. u have the points \(A(\color{red}{3},\color{blue}{-2})\) and \(B(\color{green}{1},\color{orange}{8})\) so the slope is given by
\[\large m=\frac{\color{blue}{-2}-\color{orange}{8}}
{\color{red}{3}-\color{green}{1}}=\frac{-10}{2}=-5 \]

Answer 4

slope = (y2 - y1) / (x2 - x1)
(3,-2) x1 = 3 and y1 = -2
(1,8) x2 = 1 and y2 = 8

now we sub
slope = (8 - (-2) / (1 - 3)
slope = (8 + 2) / -2
slope = 10/-2
slope = -5

Answer 5

thank you both so much. @texaschic101 and @helder_edwin

Answer 6

sure thing :)