Question

Find the slope of the line passing through each of the following pairs of points. b(−3, 9), (−3, −5)

Answer 1

$\underline{\textsf{Given:}}$

$\textsf{Points are (-3,9) and (-3,-5)}$

$\underline{\textsf{To find:}}$

$\textsf{Slope of the line joining the given points}$

$\underline{\textsf{Solution:}}$

$\underline{\mathsf{Concept:}}$

$\mathsf{Slope\;of\;the\;line\;joining\;the\;points\;(x_1,y_1)\;and\;(x_2,y_2)\;is}$

$\boxed{\mathsf{m=\dfrac{y_2-y_1}{x_2-x_1}}}$

$\mathsf{Now}$

$\mathsf{Slope\;of\;the\;line\;joining\;(-3,9)\;and\;(-3,-5)}$

$\mathsf{=\dfrac{y_2-y_1}{x_2-x_1}}$

$\mathsf{=\dfrac{-5-9}{-3+3}}$

$\mathsf{=\dfrac{-14}{0}}$

$\mathsf{=\infty}$

$\underline{\textsf{Answer:}}$

$\mathsf{Slope\;of\;the\;line\;joining\;the\;given\;points\;is\;\infty}$

$\underline{\textsf{Find more:}}$

If slope of the line through [2, -7] and [x, 5] is 3 then x =

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