I'm not entirely positive if this is what you're looking for but I plugged it into a calculator and this is what's there. (MAKE SURE TO ROTATE IT)
Answer: 12
Step-by-step explanation: there are 60 minutes in an hour. 60/5=12
The y intercept is when x=0
x is the depdendent numer
when x=0 (or when no change has occured), the y intercept is te starting value
example
a car is at the 1 mile mark
if it goes 10 miles per hour, what mark will it be at in 10 minutes
distance=10x+1
1 is starting point, when x=0, or when the car hasn't traveld at all
yint is the initial value of the function
It's not any different from a regular unknown area problem, my friend.
It all depends on the figure, but let's take a square in this example.
You simply count up the units, and multiply length by width.