To find the slope of the equation, you must assign numbers for x and y.
(Do it by trial and error.)
How about if x is 2?
13(2) + 11 = 37
So I will make x to 2 and y to 37. How about another one. How about x is 1?
So here are the solutions I chose.
Here is the formula of finding the slope:
rise=y - another y divided by run= x - another x
13/1 = 13
Therefore the slope of the equation is 13.
(Let me know if I have a mistake or all of this is a mistake.)