Question

The points (-10,-4) and (5,5) are end points of the diameter of a circle. Find the length of the radius of the circle. Help please?

Answer 1

\[distance formula: \sqrt{(x _{2}-x _{1})^{2} + (y _{2}-y _{1})^{2}}\]when given points (x1, y1) and (x2, y2)

Answer 2

so do\[\sqrt{(5+ 10)^{2} + (5+4)^{2}} =\]then divide what you get by 2

Answer 3

48?

Answer 4

mmm I got √ (15^2 + 9^2) = 17.493
divided by 2 = 8.746

Answer 5

what did you do with the (15^2 + 9^2)?

Answer 6

square rooted it

Answer 7

8.75 .

Answer 8

yep :)

Answer 9

how about this one? (4, -4) and 7,5)

Answer 10

to find the distance between two points
\[\sqrt{(7-4)^{2} + (5+4)^{2}}\]

Answer 11

6.4807?

Answer 12

mmm not quite :)
√( 3^2 + 9^2) = ?

Answer 13

9.4868?

Answer 14

that's what I got :)