The Slope-Intercept form of the equation of a line is the shown below:

Where "m" represents the slope of the line and "b" represents the y-intercept.
In this case, you know that the slope of a line is:

According to the information given in the exercise, the line passes through this point:

Since the value of "x" is zero when the line intersects the y-axis, then:

Knowing the value of "m" and the value of "b", you can set up the equation of the line in Slope-Intercept form:

The answer is: Third option.