If the base of the exponent were 1, the function would remain constant. The graph would be a horizontal line. If the base of the exponent were less than 1, but greater than 0, the function would be decreasing.
If the base were 1, then the final value would never change...it would be a constant... If the base is between zero and one, it is an exponential decay equation, so the final value would continually get smaller and smaller...
Original height of tree = (x+5) m In triangle ABC x square = 5 square + 12 square X square = 25+144 X square = 169 X = 13 Thus the original height of the tree was 13+15 = 18m