Chapter 5 Flashcards
When writing an equation for a graph, what’s the period formula?
2 pie / b
(to find look at graph & see how long 1 cycle is)
THEN put the fraction over 1 & CROSS MULTIPLY
when writing an equation for a graph, what is the phase shift formula?
c = -b • phaseshift
what is a phaseshift?
when the graph moves horizontally
where does the number for the period formula go when writing an equation?
- before the x
- inside the parathasis
where does amplitude number go when writing an equation for a graph?
before the trig letters
where does phase shift go?
after the x
when identifying the features of a graph how do you find phaseshift?
set the inside of the parenthesis = to 0, then solve
when identifying AND graphing what do you have to do if there is a phaseshift ?
set it equal and solve
finding the value of inverse function what should you first do?
draw a triangle, put theta where you want, & put the number given in the fraction on the corresponding side of the triangle
what do you need in the ANSWER when finding the inverse of a function?
corresponding degree and radian
