SAT Practicef3a8f6e5-3640-4af9-a194-e13afbea670e
Practice one SAT question at a time

Questions come from the Bluebook question bank.

x fx
1 -64
2 0
3 64

For the linear function f , the table shows three values of x and their corresponding values of fx. Function f is defined by fx=ax+b, where a and b are constants. What is the value of a - b ?