Write a function rule for The output is 6 times the input x

Give the equations of two different lines that are perpendicular to the line 3x + 4y = 7.

Is this a polynomial function? i need to know asap

1c) the number 131 is a term in the sequence defined by the explicit rule f(n)=5n-4. which term in the sequence is 131? 2a) write the first four terms of the function f(n)=n^2-1 2b) what is the 10th term of the sequence defined by the explicit rule f(n)=n^2-1 2c) the number 224 is a term in the sequence defined by the explicit rule f(n)=n^2-1. which term in the sequence is 224?