This is super simple just use your formula! Remember it’s the rise of the Y value over the run of the X value.
slope or m= y2-y1/x2-x1
label you’re ordered pairs starting with the first one…
(2,-7) = 2 would be X1 and -7 is y1 then Label the second ordered pair. Since it’s the second ordered pair then it turns into x2, y2. So, ( -1,6) is = -1 would be x2 and 6 would be y2. Now just plug it in your formula, subtract the numerator, subtract the denominator and leave it as a fraction.
6 - (-7) = 13
-1 - (2) =-3
m = 13/-3 or -4.3 repeating