SAT Math Practice Question #20741 - SATify | SATify
#20741
functions
exponential
hard
180 sec
Calculator OK
The exponential function k is defined by k(x)=7⋅ax, where a is a positive constant. If k(4)=112, what is the value of k(5)?
• 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.
