Definitions
Am I a function?
Am I a function (Graphs only)
Tables & functions
More FUNctions
100
The x values or input are also known as?
The domain
100
How do you know a relation is a function?
Each input has one and only one output.
100
Evaluate y = 2x +1 when x = -3
y = -5
100
A table of values for a linear function is given. Fill in the missing value.
x -1 0 1
y 3 8 ?
Then write the function.
y = 13
y = 5x + 8
100
y = 3/4 x + -2
What is the rate of the change(slope) for the function?
m = 3/4
200
A set of ordered pairs
A relation
200
(2, 3), (4, 4), (1, 5), (-2, 3)
Yes
200
Evaluate y= x2 + x + 1 when x = -5
y = 21
200
A table of values for a linear function is given. Fill in the missing value.
x -1 0 1
y 3 -2 ?
Then write the function.
y = -7
y = -5x + -2
200
y = -3x - 1
What is the y-intercept for the function?
b = -1
300
Each input has exactly one output
A function
300
Is this a function and why?
No because x=8 has two outputs (3 and -3)
300
Evaluate y = x2 - 2 when x = -2
y = 2
300
A table of values for a linear function is given.
x 2 3 5
y 2 1 -1
What is the function?
y = -1x + 4
300
Based on the graph of the function, what is y when x = 4?
y = -2
400
The y values or output are also known as?
The range
400
Does the following table represent a function?
x y
1 2
2 5
6 2
2 9
5 1
No, because the input (x) of 2 has two different outputs (y)
400
Evaluate y = 4x - 1 when x= -2
y = -9
400
A table of values for a linear function is given. What is the function that represents this data?
x -21 0 21
y -4 -7 -10
y = -1/7 x + -7
400
Based on the function, what is y when x = -3?
y = -3
500
A function that graphs a straight line
A linear function
500
No, vertical lines are not functions.
500
If y = 8 what is x if y = 2x + 4
x = 2
500
A table of values for a linear function is given. Fill in the missing value.
x 3 7 10
y -23 -55 ?
Then write the function.
y = -79
y = -8x + 1
500
Write a function that has a rate of change of -6.
Answers will vary.