A plane travels at a speed of 212 mph. b) By rounding 212 to 1 significant figure and using your answer
to a) part (ii), work out an estimate for the number of seconds the plane
takes to travel 1 mile.
200
(1)
c) Is your answer to part b) an underestimate or an overestimate?
16.98

the functions have the same rate of change i think. i narrowed it down to this answer and "the rate of change of tour 1 is greater" but i got it wrong using that answer so im assuming its the answer above. (this is a question i also answered from the iready site if anyone needs a reference)

it is 32.5

i hope i could u.