Graphs of Proportional Relationships Practice
Complete this assessment to review what you’ve learned. It will not count toward your grade.
1 of 51 of 5 Items
Question
Use the image to answer the question.
A graph with x-axis and y-axis labeled from 0 to 30 in increments of 2. Three points are plotted with a line connecting them.
A graph with x-axis and y-axis labeled from 0 to 30 in increments of 2. Points are plotted at left parenthesis 2 comma 10 right parenthesis, left parenthesis 3 comma 15 right parenthesis, and left parenthesis 6 comma 30 right parenthesis. A line is drawn connecting the three points.
The stretch of a spring in millimeters is proportional to the weight in grams attached to the end of the spring. Find the unit rate.
(1 point)
mm per gram
The unit rate can be found by calculating the change in the stretch of the spring (in mm) divided by the change in weight (in grams).
Using the given points:
Point 1: (2, 10)
Point 2: (3, 15)
Point 3: (6, 30)
The change in stretch is 30 mm - 10 mm = 20 mm.
The change in weight is 30 g - 10 g = 20 g.
Therefore, the unit rate is 20 mm per 20 g, which simplifies to 1 mm per 1 g.