# How do you find the slope of the secant lines of f(x) = x^3+x through the points: (1,f(1)) and (2,f(2))?

$f \left(1\right) = 2$ and $f \left(2\right) = 10$
Now find the slope of the line through $\left(1 , 2\right)$ and $\left(2 , 10\right)$