Create equations in two or more variables and graph them with appropriate labels and scales.
Write a quadratic equation in two variables from a verbal situation
Problem
Write a quadratic equation in \(\text{two}~\text{variables}\) for the area \(A\) of a rectangle with length \(x+3\) and width \(x\).
Big Picture
What this problem is really about
The two variables play different roles: x controls the rectangle’s dimensions, while A records the resulting area. We’ll multiply length by width to connect them, and that product creates an x-squared term, confirming that the two-variable relationship is quadratic.
Inside Gozunta
Turn the preview into practice.
More than a preview
Gozunta lets you study this problem—and more than 10,000 others.
Create targeted learning sessions, use hints, check your answer, read the walkthrough, watch the video, print the work, and track your progress.
