What is the slope of the line passing through $(1,-1); (4,7)$ ?

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Answer 1 · 2016-01-22T17:50:15

$8/3$

Slope $m$ of a line passing through two points $A(x_1,y_1)$ and $B(x_2,y_2)$ is given by

$m=(y_2-y_1)/(x_2-x_1)$

Here let $A=(1,-1) and B=(4,7)$

$implies m=(7-(-1))/(4-1)=(7+1)/3=8/3$

$implies$ slope of the line passing through the given points is $8/3$ .

What is the slope of the line passing through (1,-1); (4,7)(1,-1); (4,7)?