SAT Math Practice Question #31370 - SATify | SATify
#31370
expressions
functions
hard
90 sec
The function k is defined by k(x)=31x−2. If k(x)=4, what is the value of x?
• 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.
