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Home > AC > Chapter 7 > Lesson 7.2.1 > Problem 7-59


Find the equation of each of the lines graphed at right. Then confirm algebraically that is the point of intersection.  

Use .
You need to find the slope and -intercept of each line.

For one of the lines, the slope is and the -intercept is .
Therefore its equation in . Now write the equation of the other line.

Use the Equal Values Method to confirm that is the point of intersection.