Standard 3 Flashcards
1
Q
Direct variation formula
A
Y=ax
Y/x=a
2
Q
In y=ax what is a called
A
Constant of variation
3
Q
Direct variation has what y intercept
A
0!!!
4
Q
How to graph piecewizs
A
F(x)=…. Ex: x+1 if
5
Q
Pice wise function definition
A
More than one equation, each of which applies to a different part of a functions domain
6
Q
Step function looks like
A
F(x)=…. A constant ex: 3
Looks like horizontal steps
7
Q
Correlations
A
-1,-.5,0,.5,1
8
Q
How to graph using graphing calculator
A
Stat, edit, calc
L(1)=x l(2)=y
9
Q
Parent function
A
Y=x
10
Q
If negative slope it means it —— the parent
A
Reflects
11
Q
|a|>1
|a|
A
Vertical stretch
Vertical shrink
12
Q
B when comparing means
A
Shifts
Up or down — units
13
Q
How to graph standard form
A
Plug in 0 for y to get x inter
Plug in 0 for x to get y inter
14
Q
Point slope form
A
Y-y=m(x-x)
15
Q
Absolute value function
A
Always a v
