First slide

Equation of line in Straight lines

Question

If the line 3x+4y-8=0 is denoted by L, then the points (2,-5),(-5,2)

Moderate

A

lie on L
B

lie on same side of L
C

lie on opposite sides of L
D

equidistant from L

Solution

Use $m : n = - L_{11} : L_{22}$

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