Charles ran a 800 meter dash in 90.232 seconds write 90.232 in word form

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)

i think the answer is b x = 1, y = 35/2