How do you find the arctan 4/3 without using the calculator. show your solution.

The function ƒ is defined by ƒ(x) = (x + 3)(x + 1). the graph of ƒ in the xy-plane is a parabola. which interval contains the x-coordinate of the vertex of the graph of ƒ?

Find the slope of a line given the following two points

How do you find principle and simple interest