Grade 8 Proportional Relationships Worksheet
A worksheet for 8th graders on understanding and applying proportional relationships, including graphs, tables, and equations.
Includes
Standards
Proportional Relationships
Name:
Date:
Score:
Read each question carefully and answer to the best of your ability. Show all your work for full credit.
1. Which of the following equations represents a proportional relationship?
y = 3x + 2
y = x - 5
y = 0.5x
y = x^2
2. The graph of a proportional relationship always passes through which point?
(1, 1)
(0, 0)
(0, 1)
(1, 0)
3. In a proportional relationship, the ratio of y to x is always .
4. The constant of proportionality is represented by the letter in the equation y = kx.
5. A car travels 150 miles in 3 hours. Assuming a constant speed, how far will it travel in 5 hours? Explain your reasoning.
6. Plot the points from the table below on the coordinate plane. Then, determine if the relationship is proportional and explain why.
x | y --|-- 1 | 2 2 | 4 3 | 6 4 | 8
7. All linear relationships are proportional relationships.
True
False
8. The constant of proportionality can be found by dividing y by x.
True
False
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