16Hit1600
AlgebraEasy–MediumValue of a linear function in context

Algebra practice question

A seedling is 2 centimetres tall and grows 0.75 centimetres per day. How tall, in centimetres, will it be after 8 days?

Answer: 8

2 + 0.75 × 8 = 2 + 6 = 8.

Common wrong answers

If you answered 6
6 is the growth alone, without the starting height.
If you answered 10
10 adds 8 to 2, treating the rate as 1 per day.
If you answered 22
22 multiplies (2 + 0.75) by 8.

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