South Carolina Academic Standards for Mathematics
Elementary Algebra
Elementary Algebra
Standard EA-3: The student will demonstrate through the mathematical processes an understanding of relationships and functions.
Lessons (5)
Students learn basic ideas about graphing points on the coordinate plane.
Demonstrates the connections between formulas and graphs.
Teaches distinguishing between possible and impossible graphs of functions as well as causes of graphical impossibility.
Introduces the basic ideas needed for understanding functions.
Demonstrates the connections between formulas, graphs and words.
Activities (6)
Decode encrypted messages to determine the form for an affine cipher, and practice your reasoning and arithmetic skills. Input your guesses for the multiplier and constant. Caesar Cipher III is one of the Interactivate assessment explorers.
Enter a set of data points, then derive a function to fit those points. Manipulate the function on a coordinate plane using slider bars. Learn how each constant and coefficient affects the resulting graph.
This applet allows the user to make observations about the relationship between speed and position and how both of these are affected by initial velocity and the incline on which the biker is traveling.
Students investigate linear functions by trying to guess the slope and intercept from inputs and outputs. Linear Function Machine is one of the Interactivate assessment explorers.
Review the properties of functions by looking at ten different curves and deciding whether or not they meet the criteria for a graph of a function. This activity simply displays the curves - it does not quiz the user.
Learn about the vertical line test for functions by trying to connect points in the plane to build a function. When you have connected all of the points, you will be told if your graph is a valid graph of a function. Vertical Line Test is one of the Interactivate assessment explorers.