Week 6 math 10

This week in math 10 we reviewed some grade 9 graphing skills, the most important thing we learnt this week was about relations in graphing.

A relation is a relationship between two sets of information/numbers. X and Y values are linked in an equation they are related, they are a relation.

A relation consists of a bunch of ordered pairs, and can be drawn as a T chart to plot values visual as shown in the example below: 

A relation is when X and Y are connected, every variable produces a different Y value that is dependant on the X value.

This week we leant that in graphing the X axis is always horizontal and the Y axis is vertical, placing a relation on a graph, as shown on the example below plot the X values along the horisontal line and the Y along the vertical line:

In the example above the hours driven is a relation with the distance traveled, the distance depends on the hours so X (hours) is the independent variable and Y (distance) is the dependant variable.