The easiest way to calculate the volume is to split the trough into two rectangular prisms. (imagine drawing a horizontal line from the internal corner of A and 4ft to the left 8ft side).
Volume of a rectangular prism = width x length x height
Volume of rectangular prism 1: B x 8 x 2 = 4 x 8 x 2 = 64 ft³
A proportional graph includes a line that is A) straight and B) passes through the origin/(0,0).
graphs A and D would be incorrect since they do not include straight lines. graphs B and C would be incorrect since they do not include lines that intersect the origin.
the only correct answer here is graph E since it’s both straight and passes through (0,0). hope this helps!
