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Concept: Line: Line in slope form is given as, \(\frac{{\rm{x}}}{{\rm{a}}} + \frac{{\rm{y}}}{{\rm{b}}} = 1\) where a is x-intercept and b is y-intercept. Calculation: Let the equation of line be \(\frac{{\rm{x}}}{{\rm{a}}} + \frac{{\rm{y}}}{{\rm{b}}} = 1\) ----(1) Where a is x-intercept and b is y-intercept. The line is passing through (2,3). So, (2,3) should satisfy the equation of line. Put x = 2 & y = 3 in equation (1) \(\frac{2}{{\rm{a}}} + \frac{3}{{\rm{b}}} = 1\) ----(2) Now, we have given that the intercept on the positive y-axis equal to twice its intercept on the positive x-axis. So, b = 2a Put b = 2a in equation 2 \(\frac{2}{{\rm{a}}} + \frac{3}{{2{\rm{a}}}} = 1\) ⇒ 2 + 3/2 = a ⇒ a = 7/2 Now, b = 2a = 7 So, equation of line will be, \(\frac{{\rm{x}}}{{\frac{7}{2}}} + \frac{{\rm{y}}}{7} = 1\) ⇒ 2x + y = 7 India’s #1 Learning Platform Start Complete Exam Preparation
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