2. Module 7.1 Lesson 5 and 6.notebook
2
September 09, 2015
EXIT TICKET
Complete the table.
If Gabby wants to make an octagon with a side length of 20 inches
using wire, how much wire does she need? Justify your reasoning
with an explanation of whether perimeter is proportional to the side
length.
The table below shows the relationship between the
side lengths of a regular octagon and its perimeter.
12. Module 7.1 Lesson 5 and 6.notebook
12
September 09, 2015
Closing Questions
1. How are proportional quantities represented in a
graph?
They are represented in a graph where the points lie on a straight
line that passes through the origin.
2. What is a common mistake a student might make
when deciding whether a graph of two quantities
shows that they are proportional to each other?
Both graphs can have points that lie on a straight line, but the graph
of the quantities that are proportional to each other also goes through
the origin. In addition the graph could go through the origin, but the
points do not lie on a straight line.