If P=(3,1) and Q=(-3,-7), find the equation of the circle that has
segment PQ as a diameter.
(x – 0)2+(y - [ ? ])2= []
Please help ASAP!

Simplify.7x + 3y - 2 + 6x + 1 + y squared 2 you! ; )

Asap describe the transformations required to obtain the graph of the function f(x) from the graph of the function g(x). f(x)=-5.8sin x. g(x)=sin x. a: vertical stretch by a factor of 5.8, reflection across y-axis. b: vertical stretch by a factor of 5.8,reflection across x-axis. c: horizontal stretch by a factor of 5.8, reflection across x-axis. d: horizontal stretch by a factor of 5.8 reflection across y-axis.

The roots of the function f(x) = x2 – 2x – 3 are shown. what is the missing number?