Vocab
The ratio between two directly proportional quantities is called a what?
Constant of Proportionality
What is the slope to these coordinates (1, 10)?
slope= 10
The point (14,21) is an ordered pair in a proportional relationship. What is the equation to represent this relationship?
y=3/2x
What is the slope of the line through (3,3) and (0,12)?
-3
Given the following values
x: 3, 4, 3, 5
y: 2, 3, 4, 5
What is the domain? What is the range? Is this relationship a function? Why or why not?
Domain: 3, 4, 5
Range: 2, 3, 4, 5
Function: No, 3 repeats in the domain.
The set of input values of a function is called what?
Domain
What is the slope to these coordinates (3, 15)?
slope = 5
The point (7,17.5) is an ordered pair in a proportional relationship. What is the equation to represent this relationship?
y=5/2x
What is the slope of the table?
x: 0, 2, 4, 6, 8
y: 0, 4, 8, 12, 16
2
Given the following values
x: 0, 2, 4, 6, 8
y: 0, 1, 2, 3, 4
What is the domain? What is the range? Is this relationship a function? Why or why not?
Domain: 0, 2, 4, 6, 8
Range: 0, 1, 2, 3, 4
Function: Yes, domain doesn't repeat
y/x OR rise/run OR measure of the steepness of a line on a graph OR the ratio of the vertical change to the horizontal change in a linear graph is called what?
slope
What is the slope to these coordinates (2, 3)?
3/2 or 1.5
The point (6,3) is an ordered pair in a proportional relationship. What is the equation to represent this relationship?
y=1/2x
What is the slope of the line through (3,2) and (5,3)?
1/2
Given the following values
x: 0, 1, 2, 3
y: 6, 9, 12, 15
What is the domain? What is the range? Is this relationship a function? Why or why not?
Domain: 0, 1, 2, 3
Range: 6, 9, 12, 15
Function: Yes, domain doesn't repeat
The set of output values of a function is called what?
What is the slope to these coordinates (20, 5)?
slope= 1/4
The point (5,30) is an ordered pair in a proportional relationship. What is the equation to represent this relationship?
y=6x
What is the slope of the line through (3,8) and (3,12)?
Undefined
Given the following values
x: 2, 3, 4, 3
y: -11, -12, -13, -14
What is the domain? What is the range? Is this relationship a function? Why or why not?
Domain: 2, 3, 4
Range: -11, -12, -13, -14
Function: No, 3 repeats in domain.
What test determines if a graph represents a function?
What is the slope of this equations y=5/4x?
5/4 or 1.25
The point (4,12) is an ordered pair in a proportional relationship. What is the equation to represent this relationship?
y=3x
What is the slope of the line through (4, -5) and (8, -5)?
Zero
Given the following values
x: 1, 2, 3
y: 4, 6, 8
What is the domain? What is the range? Is this relationship a function? Why or why not?
Domain: 1, 2, 3
Range: 4, 6, 8
Function: Yes, domain doesn't repeat