This word is used to describe the set of all inputs for a function.
Domain
Which of the following is a function?
A.{(1, 4), (2, 5), (3, 6), (4, 8)}
B.{(2, 1), (3, 1), (3, 3), (2,2)}
A
What type of numbers you can actually see and count?
Natural Number
Find the RANGE:
{(-2, 4), (3, 2), (2, 10)}
What is {2, 4, 10}?
What is the slope of y=2x+4?
What is m=2?
This word is used to describe the set of all outputs of a function.
Range
Yes
The crazy number in the family
Irrational Number
Find the DOMAIN:
{(-2, 4), (3, 2), (2, 10)}
What is {-2, 2, 3}?
What is the slope of y + 2x = 4
What is m= -2
Must get in Slope-intercept form first.
y = -2x + 4
This word describes a relation that pairs each x value with only one y value.
Function
Is this a function and why?

No, because x's repeat at 8.
TRUE or FALSE: All functions are relations but not all relations are functions
TRUE
What is the domain of the function
What is {-3,-1,2, 4}
What is the y intercept of y = -3x - 5?
b= -5
What visual test can be used to determine if a graph is a function?
Vertical Line Test
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)
What are the ways to represent a function?
ordered pair (x, f(x)
equation y= f(x)
table
mapping
graph
Find the RANGE in

What is {-6, -5, -2, 3, 5}
What is slope of y=-3?
Zero slope
This is a function in which f(x) = mx + b, where m and b are real numbers, and m and f(x) are not both equal to zero.
Linear Function
No, not a function
FREE 500 points
What is the graph's domain?
What is
D= {-6, -1, 2, 4, 5}
What is the slope of x = 2?
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