SAT Math Practice Question #14528 - SATify | SATify
#14528
functions
exponential
pattern
hard
70 sec
For the exponential function f, the table above shows several values of x and their corresponding values of f(x), where b is a constant greater than 1. If k is a constant and f(k)=b19, what is the value of k?
x
f(x)
1
b^{-1}
2
b^3
3
b^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.