Linear Graphs

6. If the relationship between two variables is _____, a straight line would fit through all of the points.
11. How far something travels per unit of time
12. [charge] A type of charge to a customer. This is what we call the rate paid per unit of services supplied (e.g. the hourly fee for a plumber)
13. A relationship in which the x values may be integers only
15. The relationship between the units you are using and their representation on the graph.
16. point The point on a graph where two lines meet
18. A number that tells us the value of x when y is zero
21. If the relationship between two variables is ______, when
22. A pair of numbers that define a point on the graph
23. If there is a ______ relationship between x and y, x may be any value within a range, not just counting numbers

1. [charge] A type of charge to a customer. This is what we call the amount paid by a customer no matter what quantity of services are supplied (e.g. a plumber is called or a taxi is ordered)
2. A number that tells us the value of y when x is zero
3. Replace variables with numbers and evaluate the expression
4. In a relationship, the set of numbers that x can be
5. A graph has two _____. One is horizontal and one is vertical.
7. When the value of y depends on the value of x, we call y the _____ variable
8. When the value of y depends on the value of x, we call x the ______ variable.
9. An algebraic way to express a relationship between variables using algebra
10. In a relationship, the set of numbers that y can be
14. A number that describes the steepness of the line
17. A link between two variables
19. A number that describes the steepness of the line
20. The ratio of two quantities, e.g. heartbeats per minute
24. The name of the point (0,0)
25. Figure out the value of an unknown variable