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A line graph shows the growth of a plant over 5 days. If the heights are 2 cm, 4

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Question: A line graph shows the growth of a plant over 5 days. If the heights are 2 cm, 4 cm, 6 cm, 8 cm, and 10 cm, what is the growth rate per day? (2023)

Options:

  1. 1 cm
  2. 2 cm
  3. 3 cm
  4. 4 cm

Correct Answer: 2 cm

Exam Year: 2023

Solution: 

Growth rate = (10 - 2) / 4 = 2 cm per day.

A line graph shows the growth of a plant over 5 days. If the heights are 2 cm, 4

Practice Questions

Q1
A line graph shows the growth of a plant over 5 days. If the heights are 2 cm, 4 cm, 6 cm, 8 cm, and 10 cm, what is the growth rate per day? (2023)
  1. 1 cm
  2. 2 cm
  3. 3 cm
  4. 4 cm

Questions & Step-by-Step Solutions

A line graph shows the growth of a plant over 5 days. If the heights are 2 cm, 4 cm, 6 cm, 8 cm, and 10 cm, what is the growth rate per day? (2023)
  • Step 1: Identify the initial height of the plant on Day 1, which is 2 cm.
  • Step 2: Identify the final height of the plant on Day 5, which is 10 cm.
  • Step 3: Calculate the total growth by subtracting the initial height from the final height: 10 cm - 2 cm = 8 cm.
  • Step 4: Count the number of days over which the growth occurred. From Day 1 to Day 5 is 4 days.
  • Step 5: Calculate the growth rate per day by dividing the total growth by the number of days: 8 cm / 4 days = 2 cm per day.
  • Growth Rate Calculation – Understanding how to calculate the average growth rate by finding the difference in height over the time period.
  • Line Graph Interpretation – Interpreting data from a line graph to extract relevant information about growth over time.
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