Answer:
Y= 2x will be the equation.
Explanation:
Let the equation of the given line in the graph is y = mx + c
Where m = slope of the line
and c = y - intercept.
As it is evident in the graph that line passes through origin so y - intercept of the line will be zero.
c = 0
Now the given passes through two points (0, 0) and (2, 4)
Therefore, slope of the line m =

=

=

= 2
Equation of the line will be y = 2x