# Alg. 3/ Trig Winter Exam

### 18 terms by jellybean31493

#### Study  only

Flashcards Flashcards

Scatter Scatter

Scatter Scatter

## Create a new folder

zero

undefined

are equal

### perpendicular lines slopes

are reciprocals of each other

the dimensions have to be the same

### multiplying matrices

the number of columns on the first matrix has to be equal to the number of rows of the other matrix

### identity matrix

a square matrix (same number of rows and columns) with 1's along along it's main diagonal & 0's elsewhere

### inverse matrix

two matrices that have a product of an identity matrix

y

x

y/x

### amplitude

1st step in graphing cos/sin graphs - indicates the vertical stretch

### period

2nd step in graphing cos/sin graphs - 360 / b - indicates how many waves you will see in 360 degrees

### phase shift

3rd step in graphing cos/sin graphs - -c / b

### vertical shift

4th step in graphing cos/sin graphs - d

### sinx

0 - max - 0 - min- 0

### cosx

max - 0 - min - 0 - max

### d value added to sinx/ cosx

the y values on the graph

Example: