Help I'm stuck look at the picture and help if you can please.​

Ineed solving this problem h/8=-25 solve for h idk how to this can someone show me and also give an answer you

The graph shows the distance y, in inches, a pendulum moves to the right (positive displacement) and to the left (negative displacement), for a given number of seconds x. how many seconds are required for the pendulum to move from its resting position and return? enter your answer in the box.

Does the point (1, sqrt 7) lie on circle shown.