Question

@smored @ganeshie8

Answer 1

this line is passin through origin
so its general equation
y=mx
m=slope
given one point put that in equation

Answer 2

first, find the slope
\[\frac{ y _{2}-y _{1} }{x _{2}-x _{1} }\]
\[\frac{ 1-0 }{ 7-0 }\]
slope=1/7

y=mx+b
y=1/7x (b is y-intercept, which is 0)

Answer 3

1=m*7
m=1/7
y=x/7
or
7y=x