Calculus
# Curve Sketching

What is the normal to the curve $y=6\tan x + 4$ at the point $\left(\frac{\pi}{4}, 10\right)$?

What is the normal to the curve $y=2x^2 - 3x -15$ at the point $(3, -6)$?

What is the normal to the curve $y=10{e}^x + {x}^2 +5$ at the point $(3,10{e}^3+14 )$?