Let's call that the Multiplicative Identity Property.
1 is the identity element for multiplication. Those are just fancy words for the obvious property that anything times 1 is itself.
Max(f(x)) = f(3) = 4
Max(g(x)) = g(π/2) = 2
Max(h(x)) = h(5) = 3
Of these values, f(3) = 4 is the largest.
The function with the largest maximum is f(x).
−(x^2−6x+7) that is the answer
$2.49 -------------------100 %
$1.99 ------------------- x %
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2.49 : 1.99 = 100 : x
x = ( 1.99 * 100 ) / 2.49 = 79.9 %
100 % - 79.9 % = 21.1 % ( Decrease )
$1.99 -------------------- 100 %
$2.49 -------------------- x %
------------------------------------
1.99 : 2.49 = 100 : x
x = ( 2.49 * 100 ) / 1.99 = 125.1 %
125.1 % - 100 % = 25.1 % ( Increase )
The percents of change are not the same.
The greater change is during the increase of price ( 25.1 % > 21.1 % ).
The answer should be 2 + 12 •/• 4