Question

The slope, m, of a linear equation can be found using the formula m = , where the x- and y-values come from two ordered pairs, and (x1, y1) and (x2, y2).

Answer 1

The answer is y2 = m(x2 – x1) + y1 i believe.

Answer 2

Answer with explanation:

→Suppose ,y= mx +c, is a linear equation and the line passes through two points ,$(x_{1},y_{1}),(x_{2},y_{2})$.

→Slope of line joining two points having coordinates ,$(x_{1},y_{1}),(x_{2},y_{2})$ can be obtained by the formula

 $m=\frac{\text{Difference of y coordinates}}{\text{Difference of x coordinates}}\\\\m=\frac{y_{2}-y_{1}}{x_{2}-x_{1}}$