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Searching for ## Linear Relationships and Real World Modeling

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Algebra Foundations

By using the measurements of the speed of a ball thrown verticall, you will learn how to find the x-intercept of a function by using data tables, graphs, and algebraic expressions.

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After completing this tutorial, you will be able to complete the following:

- Identify independent and dependent variables of time and speed.
- Use data tables to find the x-intercept.
- Use graphs to find the x-intercept.
- Use an algebraic expression to solve for the x-intercept.
- Represent a linear function with an algebraic expression.

What is the x-intercept of a graph of a function?

~ The x-intercept of a graph of a function is a point at which the graph crosses the x-axis (horizontal axis).

Use your data table from problem 2 to plot points on the graph of the linear function . Then sketch the graph of this function.

~ We plot the points from the table above and then connect them with a straight line since we know that the function is linear.

Approximate Time | 2 Minutes |

Pre-requisite Concepts | Students should be familiar with graphs of functions, creating a table of values for functions, and inverse operations. |

Course | Algebra Foundations |

Type of Tutorial | Animation |

Key Vocabulary | algebraic expression, data table, dependent variable |