Question

Ryan can model the height of his plants with the equation h=.5d+4 where d in the number of days and h is height in centimeters. what is the domain and range

Answer 1

Answer:

D = {d|d∈W}

R = {h|h∈R|h≥0}

Step-by-step explanation:

Since there is no maximum number of days given (when the plant dies), there is no upper limit for the "d" variable. There cannot be negative or partial days, therefore "d" has to be a whole number represented by W.

Whole numbers are all numbers that are not partial starting from 0.

D = {d|d∈W}

There is no maximum height given for when the plant is the tallest, therefore it can keep growing. The height cannot be less than 0cm so we set the restriction h≥0. The plant can have partials of a centimeter so it can be all real numbers "R" whole and partial.

R = {h|h∈R|h≥0}