The answers are in slope intercept form, which is y=mx+b, where m is slope and b is the y intercept.
The b value should be 0 because the value of y when it intercepts the y axis is 0.
The slope equals 1.5 because when x increments by 1, y increases by 1.5
Plug this into slope intercept form.
Final answer: y= 1.5x+0, or B