Copyright © Swun Math Grade 6 Unit 5 Lesson 14 C SJ
MPs
Applied MP
* Embedded MP
Conceptual Lesson
Grade 6 · Unit 5 · Lesson 14
MC: 6.EE.9
Steps:
1. Identify the independent variable as
the x-value.
2. Identify the dependent variable as the y
-value.
3. Using the equation, create a table (t-
chart).
4. Graph.
5. Answer the question.
Vocabulary Notes
Independent variable: a variable whose value does
not depend on another variable in the equation
Dependent variable: a variable whose value is based
on the value of another variable in the equation
Example:
d
= 60
t
dependent independent
variable variable
In this equation,
d
stands for distance and
t
stands
for time. This is the distance formula. In this
equation, the speed is a constant of 60 mph (like a
car on cruise control). If
t
= 1 hour, then
d
= 60 miles;
if
t
= 2 hours, then
d
= 120 miles. Time (
t
) is the
independent variable because as it changes, it
affects the distance. Time change does not depend
on the distance, because the clock “just keeps
moving.” The distance traveled depends on the time;
therefore, distance (
d
) is the dependent variable.
The relationship between
distance and time can be
represented in a table
(sometimes called a t-chart or an
input-output table).
t
(
x
-axis)
d
(
y
-axis)
1 60
2 120
3 180
1 2 3 4 5 6 7 8
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