You are going to experiment by building a Spaghetti Bridge to gather data. Alternatively, you can use the data provided. You will use the data to create a graph and a line of best fit in order to make predictions. Before you get started, don't forget to print out the OnTRACK Algebra Journal for this resource.
TEKS Standards and Student Expectations
A(4) Linear functions, equations, and inequalities. The student applies the mathematical process standards to formulate statistical relationships and evaluate their reasonableness based on real-world data. The student is expected to:
A(4)(A) calculate, using technology, the correlation coefficient between two quantitative variables and interpret this quantity as a measure of the strength of the linear association
A(4)(B) compare and contrast association and causation in real-world problems
A(4)(C) write, with and without technology, linear functions that provide a reasonable fit to data to estimate solutions and make predictions for real-world problems
Given an experimental situation, write linear functions that provide a reasonable fit to data to estimate the solutions and make predictions.
What is the purpose of creating a line of best fit?
How can graphs be used to make predictions?