Virginia Standards of Learning
8th Grade
Patterns, Functions, and Algebra
8.14 The student will
Lessons (3)
Demonstrates the connections between formulas and graphs.
Introduces the basic ideas needed for understanding functions.
Introduces students to the vertical line test for graphs of functions.
Activities (3)
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.
Similar to other "flyers", Slope Slider uses slider bars to explore the effect of the multiplier and constant on a linear function of the form f(x)=mx+b. Explore the relationship between slope and intercept in the Cartesian coordinate system.
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.