Question

PLEASE HELP WILL GIVE A MEDAL
Which of the following sums would be under the radical symbol to find the distance between the points (7, -1) and (-8, -9)?

A. 1^2 + 10^2
B. 1^2 + 8^2
C. 15^2 + 8^2

Answer 1

the distance formula is \[d=\sqrt{(x_1-x_2)^2+(y_1-y_2)^2}\], where x1, x2, y1 and y2 are coordinates of points.

Answer 2

So do I plug the numbers into the formula?

Answer 3

\[7-(-8)=15\]
\[-1-(-9)=-1+9=8\]

Answer 4

yes just plug in

Answer 5

under the radical symbol there will be \[15^2+8^2\], so the answer is C

Answer 6

Oh, thank you so much! :)

Answer 7

np :)