Question

What is the center of the circle that has a diameter whose endpoints are (6, -4) and (18, 10)?

is it (12, 7)?

Answer 1

close...but no

Answer 2

the y coordinate should be \[\huge \left(\frac{y_1 + y_2}{2} \right) \implies \left(\frac{10 - 4}{2}\right)\]

Answer 3

somehow you did

(4+10)/2 = 14/2 = 7

for the y coordinate (you lost the negative sign on the 4)

Answer 4

ooh.. (12, 6)

Answer 5

closer, but still no

Answer 6

ahh.. ok i'll try again

Answer 7

(12, 3)??

Answer 8

nailed it