Find the equation of the line passing through the inters
son of the line passing through the intersection of the lines 4x + 3y = 1 and 5x + 4y = 2
and perpendicular to x-axis.
Answers
Hence the eq. of required line is
x + 2 = 0
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Question :--- Find the equation of the line passing through the intersection of the lines 4x + 3y = 1 and 5x + 4y = 2
and perpendicular to x-axis.
Solution :----
→ 4x + 3y = 1 ------------------ Equation (1)
→ 5x + 4y = 2 ----------------- Equation (2)
Lets try to solve both first ,,
Multiply Equation (1) by 5 and Equation (2) by 4 and than subtracting both we get,,
→ 5(4x+3y) - 4(5x+4y) = 5*1 - 4*2
→ 20x + 15y - 20x -16y = 5 - 8
→ -y = -3
→ y = 3
Putting this in any Equation now we get,
→ 4x + 3*3 = 1
→ 4x = 1-9
→ 4x = (-8)
→ x = (-2) ..
_____________________________
Now, when line is perpendicular to x - axis it remains constant ..[ x = c ]
so,
→ line perpendicular to x - axis = x = (-2)
or, x + 2 = 0 (Ans)