Functions & Function Composition. Amanda Bateman. Def: A function is any process that assigns a single value of y to each number of x. Because x determines the value of y: y is the dependent variable x is the independent variable
y is the dependent variable
x is the independent variable
= 12x + 6
What is the inverse of f(x) = 3x + 2?
y = 3x + 2 (replace f(x) with y)
x = 3y + 2 (switch x and y)
y = (solve for y)
If f(x) = 3x + 2 and g(f(x)) = x then what does g(x)=?
A) 3x – 2