Q2.
Sarah wants a music magazine each month for a year. She can pay £3.50 each month or pay £37.20 for the year. Sarah pays £37.20 for the year. How much cheaper is this than paying £3.50 each month?
Given that y varies directly to the square root of (x + 1), and that y = 1 when x = 8,(a)express y in terms of .x,(b)find the value of y when x = 3,(c)find the value of x when y = 5.