PLEASE HURRY I NEED THIS ANSWERED

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.

Which of the following is the graph of y= square root -x-3

Find the condition that the zeros of the polynomial f(x) = x^3+3px^2+3px+r may be in a.p.