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FLORIDA Pre-Algebra Teacher’s Guide Vol. A

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LESSON GOALS • Use the graph of a line to write the equation of the line in standard form. • Use the graph of a line to write the equation of the line in slope-intercept form. FLORIDA STANDARDS • MAFS.8.F.2.4 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. PACING One class period, approximately 60 minutes LEARN MATHCAST: CONVERT FORMS OF LINES Students explore how to write the equation of a line in slope-intercept form and then how to convert the equation to standard form. MATERIALS • reference Guide pages 151–153 • Practice activity Book pages 121–127 • Overview and Toolkit presentations KEYWORDS Students can preview definitions of keywords hyperlinked throughout the lesson. • linear equation • point-slope form (of a linear equation) • slope • slope-intercept form • standard form (of a linear equation) Use this guide to accompany Lesson 4.04, Semester A. Convert Forms of Equations 208 CONverT FOrmS OF eqUaTIONS

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