Find the distance between the points. Give an exact answer and an approximation to three decimal places.
(7. - 3) and (5,1)

Respuesta :

Answer:

The distance between the points is [tex]d=2\sqrt{5}\ units[/tex]   or [tex]d=4.472\ units[/tex]  

Step-by-step explanation:

we know that

the formula to calculate the distance between two points is equal to

[tex]d=\sqrt{(y2-y1)^{2}+(x2-x1)^{2}}[/tex]

we have

[tex](7,-3)\\(5,1)[/tex]  

substitute the values

[tex]d=\sqrt{(1+3)^{2}+(5-7)^{2}}[/tex]

[tex]d=\sqrt{(4)^{2}+(-2)^{2}}[/tex]

[tex]d=\sqrt{20}\ units[/tex]

[tex]d=2\sqrt{5}\ units[/tex]  ----> exact answer

[tex]d=4.472\ units[/tex]  -----> approximation to three decimal places