Chapter 6.1 Flashcards
Vertical Shift
adding or subtracting a constant to or from the function’s output (outside change)
adding a constant (vertical shift) makes the graph go…
up
subtracting a constant (vertical shift) makes the graph go…
down
Horizontal shift
adding or subtracting to or from the function’s input (inside change)
g(x)=f(x-1) means the graph moves…
to the right 1
p(x)=f(x+3) means the graph moves…
to the left 3
Why do horizontal shifts move opposite of what you think?
because the translation of f(x) can be expressed as y= f(x-h)+K where h is already being subtracted
j(x)= -f(x) is a reflection across the…
x-axis (outside change)
k(x)= f(-x) is a reflections across the…
y-axis (inside change)
Asymptote
line/curve that a graph approaches, but never touches
Symmetry
graphs that don’t change when reflected
Even Function
symmetric about the y-axis, power functions with even exponents
Odd Functions
reflected across the x and y-axis, symmetric about the origin
How do you algebraically know that a function is even?
if f(-x)=f(x)
How do you algebraically know that a function is odd?
if (f-x)= -f(x)
How do you algebraically know that a function is neither even nor odd?
check that f(1) does not equal f(-1)