4.2 Slope of a Line and Slope-Intercept Form What are your objectives for Section 4.2? How can you accomplish each objective? 1 Understand the Concept of Slope • Understand the meaning of slope. • Write the property for Slope of a Line in your own words. • Complete the given example on your own. • Complete You Try 1. 2 Find the Slope of a Line Given Two Points on the Line • Learn the formula for fi nding The Slope of a Line, and write it in your notes. • Understand the property that explains Positive and Negative Slopes. • Complete the given example on your own. • Complete You Try 2. 3 Use Slope to Solve Applied Problems • Understand the meaning of points on a line. • Recognize what the slope of a line represents for an applied problem. • Complete the given example on your own. 4 Find the Slope of Horizontal and Vertical Lines • Write the property for Slopes of Horizontal and Vertical Lines in your own words. • Recognize when the slope of a line is zero and when the slope of a line is undefi ned and why. • Complete the given example on your own. • Complete You Try 3. 5 Use Slope and One Point on a Line to Graph the Line • Be able to plot the given ordered pair as a starting point. • Understand the meaning of slope to plot another point on the line. • Complete the given example on your own. • Complete You Try 4. 6 Graph a Line Using Slope and y-Intercept • Learn the slope-intercept form of a line, y mx b. • Be able to determine the slope and the y-intercept for a given equation. • Complete the given example on your own. • Complete You Try 5. Read the explanations, follow the examples, take notes, and complete the You Trys. www.mhhe.com/messersmith SECTION 4.2 Slope of a Line and Slope-Intercept Form 155
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