By considering the graph of $f\left(x\right)=2x$f(x)=2x, find $f'$f′$\left(-5\right)$(−5).
By considering the graph of $f\left(x\right)=-3x$f(x)=−3x, find $f'$f′$\left(-2\right)$(−2).
Consider the parabola $f\left(x\right)=x^2+3x-10$f(x)=x2+3x−10.
Consider the curve given by the function $f\left(x\right)=x^3+5x$f(x)=x3+5x.