can you Find Only part( B)

Luke uses his car to travel from his home to work at a local hospital. He leaves home x minutes after 7.30am and takes y minutes to arrive at the reception desk to log in. His results for 11 mornings are in the table below. X 0 5 10 15 20 25 30 35 40 45 50 y 31 42 32 58 47 56 79 68 89 95 85 a) Explain why the time taken between leaving home and arriving at the reception desk is the response variable. b) Calculate the equation of the regression line of y on x, writing your answer in the form y = a + bx c) On a particular day, Luke needs to arrive at the reception desk no later than 9am. He leaves home at 7.45am. Estimate the number of minutes before 9am that Luke will arrive at the desk, giving your answer to the nearest minute. d) Use your equation to estimate y when x = 85. e) Give one statistical reason and one context based reason as to why your estimate for d is unlikely to be realistic