# What is the slope of (4,1) (0,-4)?

Use the formula: To find the slope of a line joining $\left({x}_{1} , {y}_{1}\right) , \left({x}_{2} , {y}_{2}\right)$
m(slope)=$\tan \theta = \frac{{y}_{2} - {y}_{1}}{{x}_{2} - {x}_{1}}$
m= $\frac{- 4 - 1}{0 - 4} = \frac{5}{4}$