Question 905653
your function is f(x) = 2x + 7


your domain is {1,3,5}


when x = 1, f(x) = 2*1+7 = 2+7 = 9


when x = 3, f(x) = 2*3+7 = 6+7 = 13


when x = 5, f(x) = 2*5+7 = 10+7 = 17


your domain is {1,3,5}


your range is {9,13,17}


the range is determined by the domain.


since your domain is only those 3 numbers, then your range is only the numbers generated by the equation using those numbers as the argument of the function.


you get f(1) and f(3) and f(5) as the only possible values in your range.


f(1) = 9
f(3) = 13
f(5) = 17