Helllp me i want help

Which expression is equivalent to 2x^2+7x+4?

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.

What situation is an example of an observational study