SAT Math Practice Question #34881 - SATify | SATify

#34881

pattern

exponential

functions

easy

60 sec

For the exponential function $f$ , the table above shows several values of $x$ and their corresponding values of $f (x)$ , where $a$ is a constant greater than 1. If $k$ is a constant and $f (k) = a^{15}$ , what is the value of $k$ ?

x	f(x)
1	a^3
2	a^5
3	a^7

• Up to 5 characters (6 if negative). Only numbers, decimal (.), fraction (/), negative (-).
• Fractions must be in lowest terms.
• Mixed numbers must be converted to improper fractions.