<span>nth term = 7n - 3
n = 1,2,3,4....</span>
Y = 3x - 9, because for a line to be parallel it has to have the same gradient (x value) as the first line, and y = 3x - 9 is the only equation with the x value of 3.
The answer should be 4. When you add 4 to the y-intercept of f(x), you get y=2. I hope this helps!
