CBSE Class 9 Answered
sir you told that x and y cannot be zero but in some sums you havw put the value as zero so can you explain how it happens
Asked by Namita.kmr | 20 Jul, 2020, 10:39: PM
Expert Answer
in an linear equation
ax+by+c=0
if we put x = 0 and y =0 together
then
c=0
consider
2x+3y+4=0
if we put x=0, y=0
then
4=0....which is wrong
so x=0 y=0, means c should be equal to 0
so the equation looks like ax+by =0
but we can put x=0, alone in any linear equation
and y=0, alone in any linear equation
not together in all equations.
Answered by Arun | 21 Jul, 2020, 11:20: AM
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