10.3 Number Patterns in Graphs

The graph shows the number of pounds of fish the seals at an aquarium eat each day. Which statement and equation about the relationship is true?

• additive pattern, d = p + 3

• addition pattern, p = d + 3

• multiplicative pattern, p = 10 × d

• multiplicative pattern, d = 3 × p

The graph shows the relationship between the number of days and the amount of food that a bottlenose dolphin eats. Which point on the graph shows the amount of food that the dolphin consumes in two days?

• point A

• point B

• point C

• point D

Multi-Step If s is the amount of food a bottlenose dolphin eats in a day and n is the number of days, which of the following describes the rule for the pattern shown in the graph?

• s = n + 23

• s = n × 23

• n = s × 23

• n = s + 23

Which of the following rules describes the pattern in the graph?

• a = 4b

• b = 4a

• b = 4 + a

• a = 4 + b

Is the pattern additive or multiplicative? Write the rule for the pattern.

• additive

• multiplicative

• b = 4a

• b = 4 + a

Is the pattern additive or multiplicative? Write the rule for the pattern.

• additive

• multiplicative

• d = 4c

• d = 4 + c

Is the pattern additive or multiplicative? Write the rule for the pattern.

• additive

• multiplicative

• f = 5 × e

• f = 5 + e

Is the pattern additive or multiplicative? Write the rule for the pattern.

• additive

• multiplicative

• h = 5 + g

• h = 5g

Patrice rents a rowboat for several hours.

Use the pattern shown in the graph to write the rule for calculating the cost of renting the rowboat.

Use c for the cost and h for the number of hours.

If Patrice rents the boat for 4 hours, what is the cost of the rental?

• $60

• c = $15h

• c = $15 + h

• $19

The graph shows the relationship between the number of hours Ivana bikes and the distance she travels. How many miles does Ivana bike in 4 hours?

• 28 miles

• 12 miles

• 32 miles

• 30 miles