SAT Math Practice Question #31785 - SATify | SATify
#31785
equations
functions
hard
75 sec
The function k is defined by k(x)=x2−16. For what positive value of x does k(x)=9?
• 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.
