In this video lesson we will learn about the slope of a line as a ratio, m, rise over run. We will learn that rise is the change in y or vertical change between any two points on a line. We will learn that run is the change in x or horizontal change between any two points on a line. We will learn how to find the slope of a line graphed in a coordinate plane. We will find the slope by using two given points to graph a line and find the slope. We will use a table of values to graph a line and find the slope. We will compare the equivalent ratios by finding slope between different points. Student practice is embedded in the lesson and exemplar solutions are modeled.
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00:00 Introduction
00:30 Facts about slope
02:41 Understanding Slope as Rise/Run
03:29 Find Slope
04:43 Student Practice #1
05:35 Slope & Equivalent Ratios on a Graph
08:12 Slope from Two Points
09:02 Student Practice #2
10:03 Slope from a Table of Values
11:35 Student Practice #3
Common Core Math Standard
7.RP.A.2.B Identify the constant of proportionality (unit rate) in tables, graphs, equations, diagrams, and verbal descriptions of proportional relationships.