SAT Math Practice Question #12135 - SATify | SATify
#12135
functions
linear
medium
60 sec
The table shows some values for x and f(x). The relationship is linear and can be defined by the equation f(x)=ax+15, where a is a constant. What is the value of a?
x
2
5
8
f(x)
25
40
55
• 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.