Answer:
Option (3) is correct.
Slope of the given equation
is 
Step-by-step explanation:
Given equation 
We have to find the slope of the above line.
Way 1)
An equation of the form y=mx+b, where m is the slope and b is the y-intercept.
Comparing we get 
Way 2)
Slope can be find by evaluation derivative of the given line with respect to x,
Derivative
with respect to x, we get,

Thus, slope of the given equation
is 
Thus, option (3) is correct.