Question

At the beginning of spring, Anand planted a small sunflower in his backyard. When it

was first planted, the sunflower was 10 inches tall. The sunflower then began to grow
at a rate of 2 inches per week. How tall would the sunflower be after 9 weeks? How
tall would the sunflower be after w weeks?

Answer 1

The sunflower is 28 inches tall after 9 weeks

The sunflower is 2w + 10 tall after w weeks

Explanation:

We know

The sunflower was 10 inches tall, growing at a rate of 2 inches per week. Let's T represent the tall of the sunflower; we have the equation

t = 2w + 10

How tall would the sunflower be after 9 weeks?

t = 2(9) + 10

t = 28 inches

How tall would the sunflower be after w weeks?

t = 2(w) + 10

t = 2w + 10

So,

The sunflower is 28 inches tall after 9 weeks

The sunflower is 2w + 10 tall after w weeks