Question

Bean plants grow rapidly. A bean plant is 16 inches tall. Tomorrow it will be 24 inches tall, the next day it will be 32 inches tall, and on the next day it will be 40 inches tall. Write a rule to represent the height of the bean plant as an arithmetic sequence. How tall will the plant be in 12 days?

Answer 1

Every day, it increases by 8 inches. We know that it started at 16 inches.

We can construct an equation with this information.

Equation: 16+8x=h
h=Height
x=Days

Plug in 12 for x:
16+96=h
h=112 inches

Answer: The plant will be 112 inches tall in 12 days.