Graphs Flashcards
(9 cards)
What does mod bars around x mean about the shape of a graph
V shape
What do we do when it’s |f(x)|
Reflect negative y values in x axis
What do we do when it’s f(|x|)
Reflect the x positive values in the y axis
If 40 is a rootof a quadratic and we know a coordinate, how do we model it
y=Ax(x-40)
Plug in and solve for A
Sketch the graph transformation table
What’s the difference between f⁻¹(x) vs f⁻¹
For f⁻¹(x) just write the inverse function
For F⁻¹, write the inverse function AND DOMAIN (which is the range of the original function)
If we have 2|x+4| where does the minus go
2|x+4|=
2(x+4)
and
-2(x+4)
Doesn’t go between the 2 and bracket
When solving a function equal to its inverse, what do we do
Set either the inverse function OR the original function = x
How do we prove f(x) is odd