The graph of passes through and decreases as increases

MATHEMATICS · Single correct · AP · AP Precalculus · Exponential and Logarithmic Functions · Exponential and Logarithmic Functions

Problem

The graph of

y=k^{x}

passes through

(0,1)

and decreases as

x

increases. Which one of the following could be the value of

k

? (a)

\sqrt{2}

(b)

\dfrac12

(c)

3

(d)

e