Answer
- Graphs are a convenient and revealing way to represent economic relationships.
- Two variables are negatively or inversely related when their values change in opposite directions. The line (curve) representing two inversely related variables slopes downward.
- Two variables are positively or directly related when their values change in the same direction. The line (curve) representing two directly related variables slopes upward.
Work Step by Step
1) A graph is a visual representation of the relationship between two variables which includes economic relationships.
2) When two variables change in opposite directions they are inverse so have a downsloping line.
3) When two sets of data are positively or directly related they are directly related so have a upsloping line.
