Question

Question 3 (Multiple Choice Worth 5 points) (04.06 MC) Malia is using an online calculator to calculate the outputs f(n) for different inputs n. The ordered pairs below show Malia's inputs and the corresponding outputs displayed by the calculator: (1, 4), (2, 9), (3, 14), (4, 19) Which of the following functions best represents the rule that the calculator uses to display the outputs? f(n) = 5n − 1 f(n) = 5n + 1 f(n) = 4n + 1 f(n) = 4n − 1

Answer 1

f(n)=5n-1 is the function

Answer 2

that would be f(n) = 5n - 1

f(n) stands for y and n stands for x
if u take ur point (1,4) and sub in 1 for x and 4 for y, u get
4 = 5(1) - 1
4 = 5 - 1
4 = 4...correct

and u will notice that if u sub in any of ur points into f(n) = 5n - 1, they will come out true