Answer:
It would be 3n + 1.
Step-by-step explanation:
By looking at the input and output, you can figure out that the output is 1 more than 3 times the input.
1 --> <u>3</u>(1) + <u>1</u> = 4
2 --> <u>3</u>(2) + <u>1</u> = 7
3 --> <u>3</u>(3) + <u>1</u> = 10
4 --> <u>3</u>(4) + <u>1</u> = 13
So the output is always 1 more than 3 times the input.
3 times "n" is equal to 3n
So 1 more than 3 times "n" is equal to 3n+1
3n + 1 would you your answer.
Hope that helps, :)