When you know the coordinates of a point and the slope of a line, you can use the formula

in your case,
and
, so you have

Answer:
the answer is 45/8 very direct
Given:
Consider the three number are given by:



To find:
The three numbers are the Pythagorean triple generated by using 4 for x and 1 for y.
Solution:
We have,



Substituting 4 for x and 1 for y, we get



Similarly,


And,



The three three numbers are the Pythagorean triple are 8,15 and 17.
Therefore, the correct option is C.