Create equations in two or more variables, graph them, and label axes/scales appropriately.
Write a two-variable equation with a starting value and rate
Problem
A plant starts at \(6~\text{centimeters}\) and grows \(2~\text{centimeters}\) each week. Write an equation relating weeks \(w\) to height \(h\).
Big Picture
What this problem is really about
The plant’s height is built from a starting amount plus steady growth over time. We’ll use weeks as the input, multiply by the growth per week, and then add the height already present at week zero. Keeping the rate with the input and the starting value as the constant produces the needed linear relationship.
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