JAMB - Mathematics (2002 - No. 26)
Find the equation of the set of points which are equidistant from the parallel lines x = 1 and x = 7
y = 3
x = 3
x = 4
y = 4
คำอธิบาย
The line equidistant from x = 1 and x = 7 is
\(x = \frac{1 + 7}{2} \implies x = 4\)