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Solve each system of equations by graphing. Check each solution.

The perimeter of a rectangle is 24 ft. Its length is five times its width. Let x be the length and y be the width. What is the area of the rectangle?

  • math -

    make a graph, horizontal width, vertical length.
    Plot a line with slope 5 from the origin.

    Now, plot the line w=12-l
    or w=-L+12

    where the lines cross, is the solution
    now, area of triangle: area underneith the triangle drawn from 0.0 to the intersection point

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