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Equation of lines passing through origin are
y = kx
where k is a constant
Let us check an example
y = x
Drawing y = x in graph
Points which satisfy the equation is
x |
0 |
1 |
2 |
–1 |
y |
0 |
1 |
2 |
–1 |
Plotting points on graph
Hence, y = x is line which passes through origin