SAT Math Practice Question #38189 - SATify | SATify
#38189
functions
hard
75 sec
Calculator OK
The function k is defined by k(x)=4x−7. If k(a)=13, what is the value of a?
• 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.