High School – Pre-Algebra - Unit 8 Mathematics High School – Pre-Algebra - Unit 8 Content Vocabulary: Domain Function Linear equation Linear inequality Negative correlation Positive correlation Range Relation Scatter plot Slope Slope-intercept System of linear inequalities Trend line Vertical line test y-intercept Linear Functions and Graphing Essential Understandings: Algebraic Reasoning: Patterns and Functions- identify and graph relations and functions find solutions of two-variable equations graph equations with two-variables find the slope of a line and use the slope to graph linear equations write rules for linear functions from words, tables and graphs solve systems of linear equations graph systems of linear inequalities use “make a graph” as a problem solving strategy Working with Data- draw and interpret scatter plots use scatter plots to analyze data and determine trends