Unit 2 (Functions) Flashcards
f(g(x)) means to
put g(x) through f(x)
When x+2 goes through f(x) it becomes
f(x+2)`
(fg)(x) equals
f(g(x))
An inverse function is
A function that undoes what a normal function does
When inverse functions are graphed, _ and _ are swapped.
x and y
the function y⁻¹ means
the inverse of y
When solving an inverse function you switch x and y and then
solve for y
A function is not a function if one x value has
multiple y values
A one to one function is a function that
has one x value for each y value and has one y value for each x value
if y = x² becomes y = x² - 5, then the graph will
translated down by five
if y = (x)² becomes y = (x - 5)², then the graph will
translate to the right by five
if y = x² becomes y = x² - 5x then the graph’s x intercepts will be
(0,0) and (5,0)
A function is even if it
is asymmetrical about the y axis
A function is odd if it
is symmetrical about the y axis
