Question

Write the equation of a line with slope m=2 and point 0,0

Answer 1

hello : 
the line passes by O(0,0) : an equation is : y = mx
so : y=2x.....(the equation of a line with slope m=2 and point (0,0))

Answer 2

y=mx+b
m=slope
b=y intercept

the y intercept is the y value when x=0
so we are given

m=slope=2
a point is (0,0)
when x=0, y=0
so b=0
and m=2


y=2x+0
y=2x is da equation