Reflection: Intervention and Extension Find intercept by solving equations - Section 3: Practice

 

At this point in the unit, my students have several different topics which require reteaching or review:

  • Some students need a refresher about the domain and range. When I work with these students I begin by asking the student what they know about each concept. Other questions will include when do you know the domain (range) is all real numbers? When is the domain(range) not all real numbers?" 
  • Another group of students is struggling with asymptotes. I again ask students what they know about asymptotes. We talk about how the graph gets really close to the asymptote. We discuss the shape of exponential and logarithmic graphs.
  • A third group is struggling with how to find the intercepts. I want to know if the students are confused about solving equations, or, what the process is for solving equations to identify the intercepts. The students understand that they need to let either x or y be zero to find the intercepts. The main issue is finding the x-intercept. I have the students solve the equation as I watch and correct any errors. These students usually know what they are doing but are not confident since the numbers are not "nice" numbers.

  Reteaching strategies
  Intervention and Extension: Reteaching strategies
Loading resource...
 

Find intercept by solving equations

Unit 3: Exponential and Logarithmic functions
Lesson 6 of 11

Objective: SWBAT find x and y intercepts for logarithmic or exponential graphs

Big Idea: It is sometimes necessary to solve an equation to find the x and y intercepts of a logarithmic or exponential graph.

  Print Lesson
Add this lesson to your favorites
Subject(s):
Math, graphing exponential functions, Graphing logarithmic functions, PreCalculus, exponential function, logarithmic functions, equation solving, Properties of Logarithm
  70 minutes
log
 
1
2
3
4
Similar Lessons
 
The Constant Area Model, Day 1 of 3
Algebra II » Modeling with Algebra
Big Idea: An algebraic model reveals interesting aspects of a geometric situation we might not see otherwise.
  Favorites(1)
  Resources(13)
Fort Collins, CO
Environment: Suburban
Jacob Nazeck
 
Radioactive Decay and Nuclear Waste
12th Grade Math » Exponential and Logarithmic Functions
Big Idea: How long it will take for radioactive waste to reach a safe level?
  Favorites(11)
  Resources(19)
Troy, MI
Environment: Suburban
Tim  Marley
 
Comparing Rates of Growth
Algebra I » Functions
Big Idea: Which company will make more profit? Students compare and contrast a linear growth model and an exponential growth model. They work with a variety of representations to determine when the two companies will have the same amount of money.
  Favorites(0)
  Resources(15)
Boston, MA
Environment: Urban
Amanda Hathaway
 
Something went wrong. See details for more info
Nothing to upload
details
close