Name: SAT Math Help & School Math Mastery
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#14110

functions

exponential

hard

35 sec

For the exponential function $j$ , the value of $j (3)$ is $q$ , where $q$ is a constant. Which of the following equivalent forms of the function $j$ shows the value of $q$ as the coefficient or the base?

A.

$j (x) = 20 (2)^{x - 1}$

B.

$j (x) = 10 (2)^{x}$

C.

$j (x) = 40 (2)^{x - 2}$

D.

$j (x) = 80 (2)^{x - 3}$