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Step-by-step Answer
PAGE: 441SET: ExercisesPROBLEM: 1
Please look in your text book for this problem Statement

The equations of linear system are .

For ease of graphing, write each equation in slope - intercept form.

Rewrite equation 1: in slope - intercept form.

Subtract x from each side.

.

Rewrite equation 2: in slope - intercept form.

Add x to each side.

.

The equations of graph in the same coordinate plane is

graph the equations x+y=-2 and -x+y=6

Observe the graph, the lines appear to intersect at the point .

To check the ordered pair is a solution of linear system, substitute for x and 2 for y in each of the original equations.

Substitute for x and 2 for y in the equation 1: .

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The above statement is true, so is a solution of equation 1.

Substitute for x and 2 for y in the equation 2: