The Vocab
Identifying Functions
Vocabulary
Why Intercept?
What's the equation?
100
X numbers are called
input
100
Is the following relation a function?
(1, 0), (2, 2), (3, 4)?
Yes
100
Which function has the greater slope?
function 1: y = 5x - 3
function 2: y = 3x - 4
what is function 1
100
y = mx + __
What is b?
100
m = 5
b = 2
y = 5x + 2
200
y numbers are called
output
200
Is the following relation a function?
(1, 1), (4, 1), (5, 2), (1, 2), (2, 5)?
No
200
____ over ____
What is rise over run?
200
To find the y intercept you need to look at where the slope crosses the _____
y axis
200
m = 3
b = -3
y = 3x - 3
300
the horizontal axis on a graph is the
x axis
300
Does the following table represent a function?
x y
1 2
2 5
6 2
2 9
5 1
No
300
A function is a relationship where each ______ only has one ______.
What is input and output.
300
The y-intercept is the point where a line _____ the y-axis.
What is crosses?
300
m = 2/3
b = 0
y = 2/3x
400
the vertical axis on a graph is called __
y axis
400
Is this a function and why?
What is no, because x's repeat at 8
400
A _____ line has a slope equal to 0.
What is a horizontal line?
400
What's my y-intercept?
What is -3?
400
m = 1/2
b= -1/2
y = 1/2 x - 1/2
500
In a linear equation, the y-intercept is represented by the letter __
b
500
Is this a function and why?
What is yes, because the x's are all different
500
In a linear equation, slope is represented by the letter ___
m
500
What's my y-intercept?
What is 4?
500
m = -1
b = 0
y = -x