The answer is B. The actual reciprocal is 7/2, since the answer means isn't there its means the reciprocal of the negative or positive sign
To find the area of a triangle multiply half the sum of the bases by its height, i think?
Base x height
length x width
hope this helps XD
From the intervals from (-2,0) and (4,7) I am not sure if you are required to use (,) or [,] but I will change my answer if needed.
Thank you!