Question

Julie decided to grow a plant from a seed. She measured the height of her plant each day for 30 days.

Answer 1

Given function is f(t)=0.4t

Let the number f days that have passed since the seed was planted = t

As mentioned, Julie measured and determined the height of plant after 30 days so initially the value of t = 30

But we have to find the value of f(t) at t = 10

so f(10) = 0.4*10

f(t) = 4