determine the range of the function f (x)=7x+2 when the domain is -1,3,5

Question

algebra 1

Answer 1

Definition: The range of a function is the complete set of all possible resulting values of the dependent variable. 

Answer: 

so, f(-1) = -5

f(3)=23

f(5)= 37

the range is {-5,23,37}