Find the slope of the line between the ordered pairs (2,4)and(5,6) whats the answer??

Can someone me and do the problem plz so i can understand it more better

Witch represents the inverse of the function f(x)=1/4x-12

In an equilateral triangle, each angle is represented by 5y+3. what is the value of y? a. 9.7 b. 10.8 c. 11.4 d. 7.2