3.1– Graphing Linear Equations Linear equation – its graph is a straight line IDENTIFYING LINEAR EQUATIONS Ex.1 Determine whether each equation is a linear equation. If so, write the equation in standard form. *Standard Form: Ax + By = C a. y = 5 – 2x +2x +2x 2x + y = 5 3.1...
Figure 3. A system involving parallel lines may lack a solution. Example 3 Solve this system by graphing. The graphs are shown in Figure 4. The resulting solution is shown in Figure 5. Figure 4. Three linear inequalities. Figure 5. The solution triang...
Graph Linear Equations by Plotting Points Example: 2y = 3x – 4 y (4,4) x y -2 2 1 4 (2,1) x (0,0) (0,-2) Graph Linear Equations in the form of ax + by = 0, always passes through the origin Example: 2x + 3y = 0 y x (0,0) x y 3 -2 6 -4 (3,-2) Choose...
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• 4.01 Use linear functions or inequalities to model and solve problems; justify results. o a Solve using tables, graphs, and algebraic properties; o b Interpret constants and coefficients in the context of the problem. • 4.03 Use systems of linear equations or inequalities in two variables...
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