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After going through this lesson, you are expected to illustrate system of linear equation in two variables and determine if the graph of the systems of equation are parallel, perpendicular , intersecting or coinciding lines In the previous lesson you were able to graph the linear equation in two variables. The graph is a line that either rises to the right or falls to the right The graph rises to the right if the slope is positive and if it falls to the right if the slope is negative. When the graph is a horizontal line, the slope is zero. When the graph is vertical, the slope is undefined. A pair of linear equations in two variables form a system of linear equations. The graph of a system of two equations is a pair of lines in the plane Learning Task 1: Graph each pair of linear equations in one coordinate plane Do this in your notebook. 1. y - 2x + 2 and 2y = 4x + 4 2. Y= -5 and y = -x + 3 3. Y=2x-3 andy - 2x + 4
Sagot :
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