Question

What is the slope of the line passing through the points (2, −5) and (4, 1)?

Answer 1

slope = 3

to calculate the slope m use the ' gradient formula '

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

with ($x_{1}$,$y_{1}$) = (2, -5 ) and ($x_{2}$,$y_{2}$) = (4, 1)

m= $\frac{1+5}{4-2}$ = $\frac{6}{2}$ = 3