Question

What is the center of the circle that has a diameter whose endpoints are (-3, -5) and (-11, -7)?

(-8, -1)
(-7, -6)
(-4, -6)

Answer 1

7,6?

Answer 2

the centre of the circle is at the midpoint of the diameter

you an get that by finding th e'average' of the x values and the y values of the endpoints

add the x values and divide by 2
add the y values and divide by 2

be careful of the signs...

Answer 3

note (7,6) is not one of the options....

Answer 4

thanks