A zucchini plant in Darnell’s garden was 9 centimeters tall when it was first planted. Since then, it has grown approximately 0.5 centimeters per day.
a. Write a rule to describe the function.
b. After how many days will the zucchini plant be 0.185 meters tall? (Hint: 1 meter = 100 centimeters)

Question

A zucchini plant in Darnell’s garden was 9 centimeters tall when it was first planted. Since then, it has grown approximately 0.5 centimeters per day.
a. Write a rule to describe the function.
b. After how many days will the zucchini plant be 0.185 meters tall? (Hint: 1 meter = 100 centimeters)

gschibby · Answer

f(x) = 0.5x + 9

gschibby · Answer

Then you set f(x) = 18.5 and solve for x ;)

gschibby · Answer

$$0.5x+9 = 18.5$$
$$x = \frac{ 18.5 - 9 }{ 0.5 } = 19$$
So 19 days ;)