AlgebraEasyHeight function for a growing sunflower
Algebra practice question
A sunflower is 30 centimetres tall and grows 5 centimetres each week. Which function gives its height h, in centimetres, after w weeks?
- A. h = 30 + 5wCorrect
- B. h = 5 + 30w
- C. h = 35w
- D. h = 30 − 5w
Answer: A. h = 30 + 5w
Start at 30 and add 5 for each week.
Why the other answers are wrong
- B. h = 5 + 30w
- This starts at 5 and grows 30 a week.
- C. h = 35w
- This has no starting height.
- D. h = 30 − 5w
- This shrinks.
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