Proportional Relationships Review

What is a proportional relationship?

• A relationship where two quantities maintain a constant ratio.

• A relationship where two quantities are equal to each other.

• A relationship that varies with time.

• A relationship that involves addition or subtraction.

If the constant of proportionality is 10, what is the correct proportional equation?

• y = 5x

• y = 10x

• y = 15x

• y = 20x

How do you find the cost per item in a proportional relationship?

• Multiply the total cost by the number of items.

• Add the total cost to the number of items.

• Divide the total cost by the number of items.

• Subtract the number of items from the total cost.

If Michelle makes bracelets at a rate of 2 bracelets per hour, how many can she make in 4 hours?

• 6 bracelets

• 8 bracelets

• 10 bracelets

• 12 bracelets

If y = kx, what does k represent?

• k represents the constant of proportionality.

• k represents the variable of change.

• k represents the slope of the line.

• k represents the intercept on the y-axis.

What does the point (6, 42) on a graph representing t-shirt costs indicate?

• 6 indicates the number of T-shirts purchased; 42 indicates the total cost.

• 6 indicates the total cost; 42 indicates the number of T-shirts purchased.

• 6 indicates the price per T-shirt; 42 indicates the total number of T-shirts.

• 6 indicates the discount applied; 42 indicates the final price after discount.

If a sloth moves 6 feet in 2 minutes, what is its speed in feet per minute?

• 1 feet per minute

• 2 feet per minute

• 3 feet per minute

• 4 feet per minute

What does a graph of a proportional relationship look like?

• A straight line that passes through the origin.

• A curved line that approaches the origin.

• A horizontal line above the origin.

• A vertical line that intersects the x-axis.

What does it mean if a relationship is not proportional?

• The ratio between the quantities is not constant.

• The quantities are equal.

• The relationship is linear.

• The relationship can be represented by a straight line.

What is the significance of the origin in a proportional relationship?

• The origin (0,0) indicates that if there are zero items, the cost is also zero.

• The origin represents the maximum value in a proportional relationship.

• The origin is irrelevant in determining proportional relationships.

• The origin indicates that the relationship is not proportional.