Well the increase is 132/120. Simplify by dividing 12 from the numerator and the denominator, you should get 11/10.
11/10 is also 110%
Line C is a transversal line :D
10 and try using photomath it helps.
Proof with Step-by-step explanation:
Since it is given that f(x) is decreasing thus we infer that
Similarly it is given that g(x) is decreasing thus we infer that
Now let
Differentiating both sides with respect to 'x' and using chain rule of differentiation we get
Now since both f'(x) and g'(x) are both negative(<0) we can infer that their product is always positive (>0)
Thus fog(x) is an increasing function.