# TEKS SE 8.5B Nonproportional Relationships Day 1 ```Instructional Supports
Documents
I Do
We Do
Y’all Do
You Do
DOL
be accessed through the hyperlinked title on
each corresponding slide.
Students’
Guided Notes
Includes lesson components minus
the Demonstration of Learning
Anchor Chart
Video
Do Now
Complete the graph and verbal
description using the ordered pairs
provided.
Preview Challenge
Tomorrow is Joshua and Benjamin’s birthday. Joshua is 5 years older
than Benjamin.
How can we represent Joshua’s age with an equation.
Date
(8.5B) I will represent linear
Lesson Objective Non-proportional situations with equations
in the form of y = mx+b
Given 4 problems, I will represent linear
Demonstration of Non-proportional situations with equations
Learning
in the form of y = mx+b with 100%
accuracy.
Essential Question
How can we use equations to represent
linear non-proportional situations?
Vocabulary Review Words
● linear equation
● slope-intercept form of an
equation
● y-intercept
● rate of change
● variables
I Do
The length of a rectangle is 5 inches more than one-fourth the width,
w. Which equation represents this relationship?
A.
B.
C.
D.
l=2w+5
l=&frac14; w+ 5
l =&frac14; w-5
l=2w-5
Width
(w)
l=&frac14; w +5
Length
(l)
4
&frac14; (4) +5
6
8
&frac14; (8) +5
7
12
&frac14; (12) +5
8
We Do
Melinda has \$6 more than three times as much money as her
brother, Lester. Which equation represents the relationship between
Melinda’s money, m, and Lester’s money, L?
A m = 8L+2
B m = 2L+8
C m = 2L-8
D L =2m+8
I Do
The
cash register subtracts \$2.00 from a \$50 gift card for every large
drink the customer buys. Which equation represents this situation?
A y = 50x-2
B y = 2x-50
C y = -2x+50
D y = -2x-50
Could the
equation y=
50-2x represent
this situation ?
Explain.
How do you know that this relationship is nonproportional?
We Do
The cost (y) of renting a jet ski at a lake is \$20 per hour(x) plus
\$12 for lifejackets. which can be used to calculate the total
amount you would pay for renting the jet ski.
A
B
C
D
y = 12x+20
y = 20x-12
y = 12x-20
y = 20x+12
Y’all Do
Tomorrow is Joshua and Benjamin’s birthday. Joshua is 5
years older than Benjamin.
How can we represent Joshua’s age with an equation.
Would this represent a proportional relationship? Justify
Write an equation to represent the relationship between
Joshua and Benjamin’s age.
Y’all Do (continued)
Create a table of values for Joshua and Benjamin’s age.
Could the relation between Joshua and Benjamin be
proportional? Is it possible? Explain
You Do
annotate the text.
❏ Assign Variables
justification
Differentiation
Small Group Activity
● Partner Activity
Pizza Dilemma
● Independent Activity
Pizza Dilemma
Demonstration of Learning
Given 4 problems, I will represent linear Non-proportional situations
with equations in the form of y = mx+b with 100% accuracy.
Closure
Explain how a Non-Proportional relationship be represented in
equation form.
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