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2.4 Writing Linear Equations

Last updated 10 months ago
13 questions
Note from the author:
OBJECTIVES & STANDARDS
Math Objectives
  • Write a linear equation in slope-intercept form from a table and word problem
  • Evaluate a linear expression by plugging in a given x-value.
Common Core Math Standards
  • Link to all CCSS Math
  • CCSS.PRACTICE.MP4
  • CCSS.PRACTICE.MP7
  • CCSS.HSF.BF.A.1
  • CCSS.HSF.LE.A.1.B
  • CCSS.HSF.LE.A.2
Personal Finance Objectives
  • Evaluate fee structures of checking accounts
National Standards for Personal Financial Education
Managing Credit
  • 13b: Discuss the costs and benefits of using alternative financial services relative to traditional banking
DISTRIBUTION & PLANNING
Distribute to students
  • Student Activity Packet
  • Application Problems
OBJECTIVES & STANDARDS
Math Objectives
  • Write a linear equation in slope-intercept form from a table and word problem
  • Evaluate a linear expression by plugging in a given x-value.
Common Core Math Standards
  • Link to all CCSS Math
  • CCSS.PRACTICE.MP4
  • CCSS.PRACTICE.MP7
  • CCSS.HSF.BF.A.1
  • CCSS.HSF.LE.A.1.B
  • CCSS.HSF.LE.A.2
Personal Finance Objectives
  • Evaluate fee structures of checking accounts
National Standards for Personal Financial Education
Managing Credit
  • 13b: Discuss the costs and benefits of using alternative financial services relative to traditional banking
DISTRIBUTION & PLANNING
Distribute to students
  • Student Activity Packet
  • Application Problems
Intro (Warm-Up)
CALCULATE: Linear Patterns
The pattern below represents a linear function because it grows at a constant rate. Study the pattern below to write an equation that models the function.

1
How many squares will be in the 6th figure?_______
1

Describe the pattern.

2
How many squares are in figure zero? _______ How do you know?_______
1
Write an equation to model the number of squares, y, that are in figure x._______
Learn It
Linear Equations in Slope-Intercept Form
When something changes at a constant rate, like the pattern from the intro activity above, we can write a linear equation to model how it changes. In this activity, you’ll learn how to write linear equations using one form called slope-intercept form. Follow your teacher’s instructions to review the formula below and practice writing linear equations.

4
Write an equation for each of the linear functions described below.


_______

_______

_______

_______
3

slope:_______
Initial Value:_______
Equation: _______
3
slope:_______
Initial Value: _______
Equation: _______
3
Practice It On your Own

equation:_______

Equation: _______

Equation: _______
6
Practice It On Your Own

Equation: _______


Equation: _______


Equation: _______
9
Practice It On Your Own

Equation: _______

Equation: _______

Equation: _______
Learn It & Practice it on DESMOS #1
Application Level 1
APPLICATION: Linear Equations of Checking Fees
6
m=_______
b=_______

m=_______
b=_______

m=_______
b=_______
4
Draggable itemCorresponding Item
4
a._______
b._______
c._______
d. _______
Homework: Desmos #2 Application Level 2