Frances suspects that the time taken (t minutes) to answer one question in a
multiple-choice quiz increases with the
total time (q minutes) that she has spent
working on the quiz.
She times herself over different periods and
collects the following data.
Total time
working on the 5 20 30 40 50
quiz, q (minutes)
Time taken to
answer a question, 2.4 2.8 3.4 4.0 5.1
t (minutes)
Frances thinks that q and t are related by an equation of the form t = ab^q
a (level 4) Find the values of In t against q.​