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Solving Linear Systems

Solving Linear Systems 1.6 - Solution

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a
To solve the system graphically we should start with graphing the functions. Thus, we will use the slopes and the -intercepts.

The solution to the system is where the graphs intersect, the point of intersection.

The solution to the system is given by the point

b

Use the same method here, graph the lines using their slopes and -intercepts.

The intersection of the point is the solution to the system.

The solution to the system is

c

The lines in this system of equations are not written in slope-intercept form . In order to graph them, we'll rewrite them in this form to identify the slope and the -intercept.

Now, we can graph the lines and see what the solution is.

We see that the solution is