Study Guide and Intervention (continued) Rate of Change and Slope Find The slope of a line is the ratio of change in the y-coordinates (rise) to the change in the x- coordinates (run) as you move in the positive direction.

Lesson 8-4 Study Guide and Intervention ..432 Skills Practice Teacher's Guide to Using the Chapter 8 Resource Masters rate of change slope substitution system of equations vertical line test x-intercept y-intercept Study Guide and Intervention and Practice Workbook 6-3 Rate of Change and Slope ..87 6-3 Rate of Change and Slope Study Guide and Intervention A Plan for Problem Solving Use the four-step plan to solve the problem. Lesson 5.3 Study Guide: Slope and Rates of Change The slope of a line is a ratio that measures the steepness of that line. The sign of the slope tells whether the line is rising or falling. You can find the slope of a line by comparing any two points on that line. Find the slope of the line between (2, 1) and (4, 4). rise up( )or down( ) slope Study Guide and Intervention Slope Slope Slope m of a Line For points (x1, y1) and (x2, y2), where x1? x2, m 5 5 y22 y1} x22 x1 change in y}} change in x Determine the slope of the line that passes through (2, 21) and What was her rate of change in altitude? 600 ft/h x y O x y O 1} 3 x Chapter 1 22 Glencoe Precalculus 1-4 Study Guide and Intervention (continued) Extrema and Average Rates of Change Average Rate of Change The average rate of change between any two points on the graph of f is the slope of the line through those points. The line through any two points on a curve is called a secant line. The average rate of change 4-1 Study Guide and Intervention Graphing Equations in Slope-Intercept Form (4,1) O ( -2) 3 - 8 Slope-Intercept Form y = mx + b, The rate of change is -27 million per year. In the first year, the number of music Find the slope of the NAME DATE PERIOD 3-3 Study Guide and Intervention (continued) Rate of Change and Slope Find Slope The slope of a li