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The function

f (x)

is defined by

f (x) = 2^{x}

. The function

g

is an increasing linear function. When graphed in the

x y

-plane,

f

and

g

intersect at points

(a, c)

and

(b, d)

, with

c < d

. When

g (x) > f (x)

, which must be true?

x < a

x > b

a < x < b

x < a

x > b