Quarter 1 Flashcards
When is a function even?
When f(-x) = f(x)
When is a function odd?
When f(-x) = -f(x)
How do you find the domain of the function?
By finding the possible x values in the function, denominator cannot equal 0 and no negatives under a radical
What is relative maximum?
The point where the graph changes from increasing to decreasing (left to right)
What is relative minimum?
The point where the graph changes from decreasing to increasing (left to right)
What is -f(x)? What is -√x?
Reflection across x-axis
What is f(-x)? What is √-x
Reflection across y-axis
(f/g)(x)
f(x)/g(x)
What is the remainder theorem?
When you have an input, you can do synthetic division to the function to get the range
What does “y as a function of x” mean
y is dependent on the value of x (y=….)
Even function reflect across the what?
Y-Axis
Odd functions reflect across the what?
The origin (diagonally)
What is done to find the height of a shape on a graph?
Bring the shape down to y = 0
How do you determine whether 2 functions are inverses?
You plug them into each other