Understanding Graphs of Proportional Relationships

The video tutorial explains proportional relationships using a graph that represents Cole's bracelet sales for fundraising. It covers the significance of the graph's linearity, the meaning of ordered pairs, and the interpretation of specific points like the origin. The tutorial also delves into the concept of the constant of proportionality, emphasizing its calculation and significance in understanding unit rates.

What does a straight line through the origin on a graph indicate?

• A non-linear relationship

• A proportional relationship

• An exponential relationship

• A quadratic relationship

In Cole's bracelet-selling scenario, what does the x-axis represent?

• The number of bracelets sold

• The amount of money raised

• The time taken to sell bracelets

• The cost of each bracelet

What does the ordered pair (3, 6) signify in the context of Cole's sales?

• Cole sold 6 bracelets and raised $3

• Cole sold 3 bracelets and raised $6

• Cole sold 3 bracelets and raised $3

• Cole sold 6 bracelets and raised $6

What does the origin (0, 0) represent in Cole's graph?

• Cole sold 0 bracelets and raised $0

• Cole sold 1 bracelet and raised $1

• Cole sold 0 bracelets and raised $1

• Cole sold 1 bracelet and raised $0

What is the constant of proportionality in Cole's scenario?

• The number of bracelets sold

• The amount of money raised

• The ratio of money raised to bracelets sold

• The total sales made