a proportional relationship, y = mx, the ratio of two variables quantities is constant
What is a direct variation
100
since any value can be used, there is no space between data values, graphs a solid line
What is continuous data
200
the set of all x-coordinates
What is the domain
200
the variable for the domain because it can be any number
What is independent variable
200
the vertical change between two points
What is rise
200
the constant ratio in a direct variation
What is constant of variation
200
there is space between data values and is represented by dots
What is discrete data
300
a set of ordered pairs
What is a relation
300
the variable for the range because it depends on the domain
What is the dependent variable
300
the rate of change, the ratio of rise to the run, designated by the letter "m", difference of the y-coordinates over the difference of the x-coordinates
What is slope
300
Given that y varies directly with x, write an equation for the direct variation when y = 15 and x is 3
What is y = 5x
300
A store sells book covers for $2 and notebooks for $3. Sally has $5 to spend at the store. The data from the function y = 5-2x is what type of data
What is discrete
400
a function in which the graph of the solutions forms a straight line
What is a linear function
400
the rate of change between any two points in a linear relationship is the same
What is a constant rate of change
400
y = mx + b, where "m" is the slope and "b" is the y-intercept
What is slope-intercept form
400
Given that y varies directly with x, find y if x is 2, when y = 20 and x = 5
What is 8
400
A store sells a lb of apples for $2 and a lb of oranges for $1. Would this be discrete or continuous data?
What is continuous data
500
a function that does not have a constant rate of change
What is a non-linear function
500
an equation that graphs a line, the variables are to the first power, the variables cannot be in the denominator, under a radical sign, or in an absolute value symbol
What is linear equation
500
the y-coordinate of the point where the line crosses the y-axis
What is the y-intercept
500
Given that y varies directly with x, find x if y is 10, when y = 12 and x = 6
What is 5
500
Each person receives a coupon for $5. What type of data?