MATH 112 Lecture Notes - Lecture 4: Linear Function, Constant Function
Document Summary
What is the domain of the following functions: f(x) = 2x + 1. D: all real numbers: f(x) = x + 4 = 0 x = - 4. D: all real numbers except x = - 4: f(x) = D: all real numbers except x : g(x) = D: all real numbers except x = 0: g(x) = 1. 4 types of functions and their rates of charge: linear function: a function f represented by f(x) = mx + b where m and b are constant (fixed numbers) is a linear function. Ex: f(x) = 2x + 3 - always have degree x b. Constant function: a function f represented by f(x) = b where b is a constant (fixed number) is a constant function. Slope as a rate of change: the ration of the change in y to the change x is called the slope (m)
