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The point of intersection of the diagonals of a rectangle is 4 cm further away from the smaller side then from the larger side of the rectangle. the perimeter of the rectangle is equal to 56 cm. find the lengths of the sides of the rectangle. 16 points answer quick

Rewrite so the subject can be y in the formula d=m-y/y+n

In which direction does the left side of the graph of this function point? f(x) = 3x3 - x2 + 4x - 2