Part A:
Answer the following questions for each word problem：
1)
Define independent and dependent variable.
2)
Can we join all the points on the graph with a straight line? Explain.
3)
Solve the problem itself.
1
2
3
Part B:
4
5
Examine each graph and answer each question below:
a)
Is the line horizontal or vertical?
b)
What is the slope of the line?
c)
What equation does the graph represent?
1)
2)
6
3)
Waterloo Question:
7
8