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  • 2021 April(D05) Math Question 55

    Equation of a Line

    - Equations that Describe a Line

    Equation of Line, Slope
    Choice E
    55. In the standard (x,y) coordinate plane below, a shaded square is shown with vertices at (2,3), (2,4), (3,3), and (3,4). Two  lines, y = rx and y = sx, each intersect the shaded square at exactly 1 point. Given that r ≠ s, what is the positive difference of r and s ?

    $$ Slope \ r=\frac{4-0}{2-0}=2 $$

    $$ Slope \ s=\frac{3-0}{3-0}=1 $$

    $$ \therefore r-s=1 $$

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