Texas Instruments
Texas Instruments: Inferences of the Least Squares Regression
This set contains questions regarding inference for the slope of the least-squares linear regression line. The student learns to develop hypotheses, find the test statistic, and reach a conclusion in the context of the original problem.
Texas Instruments
Texas Instruments: A Sweet Drink Adventure 7
Students determine how the temperature of water affects the dissolving time of a sugar cube. They create, interpret and analyze graphs of data, find an equation of the line of best fit, and relate slope to rate of change.
Other
Karl's Calculus: Derivatives: The Equation of the Tangent
This site goes through a step by step example of how to find the equation of the tangent to a curve using the derivative.
ClassFlow
Class Flow: Slope Review
[Free Registration/Login Required] This flipchart provides another day of review of finding the slope of a line.
CK-12 Foundation
Ck 12: Graphing
[Free Registration/Login may be required to access all resource tools.] Given a set of data, students will understand how to correctly draw a line or bar graph, interpret its patterns, and find the slope in the case of a line graph.
Sophia Learning
Sophia: Finding a Coordinate When Given the Slope: Lesson 2
this lesson presents how to find a coordinate of an ordered pair that falls on a line with a given slope. It is 2 of 5 in the series titled "Finding a Coordinate When Given the Slope."
University of Regina (Canada)
Univeristy of Regina: Math Central: Tangent Lines and Circle Equations
This site offers a problem and solution to finding all possible slopes for a line tangent to a circle given a particular equation of a circle. Could be an interesting challenge for students.
CK-12 Foundation
Ck 12: Algebra: Intercepts and the Cover Up Method
[Free Registration/Login may be required to access all resource tools.] Find the intercepts of a line and use them to graph linear functions.
ClassFlow
Class Flow: Linear Models
[Free Registration/Login Required] Students will learn the different forms of an equation of a line and will find the equations of a line in all three forms- point-slope form, slope-intercept form, and the general form (Ax+By=C).
Interactive Mathematics
Interactive Mathematics: The Derivative
The examples presented here demonstrates finding the derivative of a function using "h" rather than "delta x" notation. Graphs are included as a visual aid.
Department of Defense
Do Dea: Normal Line to a Curve
The tangent to a curve is always found at a certain point along the curve. Often you will be asked to find the normal to a curve at a point. View an example on this site.
Windstream
Ojk's Precalculus Study Page: Easier Trigonometric Equations
An introduction to solving trigonometric equations, including finding general and particular solutions. The connection between the tangent function and the slope of a line is also covered. Includes several examples and graphs.
Texas Education Agency
Texas Gateway: Tea Statistics: The Regression Equation
A tutorial on how to find the line of best fit or least-squares regression line for a set of data in a scatter plot using different methods and calculations.
CK-12 Foundation
Ck 12: Algebra: Solutions to Compound Inequalities
[Free Registration/Login may be required to access all resource tools.] Solve compound inequalities and graph the solution set on a number line.
PBS
Pbs: The Lowdown: What You Need to Know About Immigration Reform
Interpret graphs showing changes over time in the percentage of foreign-born US residents and in annual deportations in this interactive from KQED. In the accompanying classroom activity, students use the interactive and look at how...
Illustrative Mathematics
Illustrative Mathematics: G Gpe, G Co, G Srt Unit Squares and Triangles
In this task, students are shown three unit squares and two line segments connecting two pairs of vertices. They are asked to find the area of a triangle formed by intersecting lines. They can solve it using coordinate geometry or...
Khan Academy
Khan Academy: Advanced Reflections
Find the reflection that maps a given figure to another and draw the image of a reflection. The lines of reflection in this exercise have a wide range of slopes. Students receive immediate feedback and have the opportunity to try...
Khan Academy
Khan Academy: Advanced Reflections
Find the reflection that maps a given figure to another and draw the image of a reflection. The lines of reflection in this exercise have a wide range of slopes.
Interactive Mathematics
Interactive Mathematics: Tangents and Normals
Finding the slopes and equations of the tangent and normal lines of curves is demonstrated using derivatives. Interactive examples are provided.
Texas Instruments
Texas Instruments: The Phone Bill Problem
The student is given actual data and asked to find a line of best fit and to give "real world" interpretations of the slope and y-intercept. A great introduction to the 83/84 and its features.
Illustrative Mathematics
Illustrative Mathematics: S Id.7 Used Subaru Foresters
Jane wants to sell her Subaru Forester and does research online to find other cars for sale in her area. She examines the scatterplot of price versus age and determines that a linear model is appropriate. Answer a variety of questions...
Illustrative Mathematics
Illustrative Mathematics: 8.f Distance Across the Channel
This task asks students to find a linear function that models the relationship between water depth and distance across a channel at water level. After finding the equation, they have to verbalize the meaning of the slope and intercept of...
Texas Instruments
Texas Instruments: Math Today for Ti Navigator System: More Students Apply Early
Using the USA TODAY Infograph, "More students apply early," students will explore scatter plots and independent and dependent variables. Students will determine a best-fit regression model for the real-life data set and then use the...