July 20, 2009

The lesson today will look at slope as a rate and as constant change. We will re-examine a few previous problems and ask why the change was a constant amount.

- Mathematics > General
- Mathematics > Algebra
- Mathematics > Data Analysis & Probability
- Mathematics > Patterns

- Grade 6
- Grade 7
- Grade 8
- Grade 9
- Grade 10

Construct a function to model a linear relationship between two quantities. Determine the rate of change and initial value of the function from a description of a relationship or from two (x, y) values, including reading these from a table or from a graph. Interpret the rate of change and initial value of a linear function in terms of the situation it models, and in terms of its graph or a table of values.

Calculate and interpret the average rate of change of a function (presented symbolically or as a table) over a specified interval. Estimate the rate of change from a graph.?

Prove that linear functions grow by equal differences over equal intervals, and that exponential functions grow by equal factors over equal intervals.

represent constant rates of change in mathematical and real-world problems given pictorial, tabular, verbal, numeric, graphical, and algebraic representations, including d = rt;

use data from a table or graph to determine the rate of change or slope and y-intercept in mathematical and real-world problems.