Write the conjugates of them then FOIL both the top and bottom, then factor
For this case we have that by definition, the equation of a line of the slope-intersection form is given by:

Where:
m: It's the slope
b: It is the cut-off point with the y axis
While the point-slope equation of a line is given by:

Where:
m: It's the slope
It is a point through which the line passes
In this case we have a line through:
(8,4) and (0,2)
Therefore, its slope is:

Its point-slope equation is:

Then, we manipulate the expression to find the equation of the slope-intersection form:

Therefore, the cut-off point with the y-axis is 
ANswer:

Answer:
C. 4x squared -36
Step-by-step explanation:
answer: when you take 5280 feet times two (2 miles) and then divide by three you get 3,520 feet
15 miles and 3/4th hope this helps