What is the discriminant of the quadratic equation 0 = -x + 4x - 2?

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 one is true about the hexagons ?

Use circumcenter theorem to solve for the given values