Question

HELP ME ASAP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! I WILL GIVE BRAINLIEST!!!!!!!!!!!!

Answer 1

You can use the distance formula:
$\sqrt{( x_{2}- x_{1})^2 + ( y_{2}- y_{1})^2 }$

To figure out what the distance between the points is. Our x1 is -1, and our y1 is 3. Our x2 is 7, and our y2 is -3. Then, we can just plug it in, and solve:
$\sqrt{( 7- (-1)^2 + ( 3- 3)^2 }$

Simplify:
$\sqrt{(8)^2+0} = \sqrt{64}$

Simplify Further (S is the distance):
$S=8$

So, the answer is D, 8 units. If you want me to explain what I did, just tell me, I sure will! :) Anything still unclear?