What is the equation of the line that passes thru the points (- 4,2) and (-1,7)

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.

Find the area of the triangle shown 3 by 6

∆red ≅ ∆ by rule will give brainiest if possible