Answer:
[tex](x_{2} - x_{1})^{2} + (y_{2} - y_{1})^{2} = c^{2}[/tex]
[tex]V(x_{1}, y_{1}) = V(4, 4)\\X(x_{2}, y_{2}) = V(5, 8)\\[/tex]
[tex](5-4)^{2} + (8-4)^{2} = c^{2}\\1^{2} + 4^{2} = c^{2}\\[/tex]
[tex]1+16=c^{2}\\17= c^{2}\\c = \sqrt{17}[/tex]
Step-by-step explanation:
Start by plotting your points.
If the line is diagonal, then realize you can make a triangle with the line connecting the two points being the hypotenuse.
Use Pythagorean Theroem to solve.
