Question
Express y in terms of x in the equation x + 2y = 8. Find the points where the line represented by this equation cuts 4x-axis and y-axis.
Solution
x + 2v = 8 ...(1)
2y = 8 - x
y = 
2y = 8 - x y = This expresses y in terms of x.
This line will intersect x-axis at the point for while y = 0. So, put y = 0 in (1), we get
x + 2(0) = 8
⇒ x = 8
Hence, line (1) intersects x-axis at the point (8, 0).
