Question

After t hours, Liza's distance from home, in miles, is given by D(t) = 138 + 40(t-3) what is the practical interpretation of the constants 3 and 138?

Answer 1

i'm not sure if this is right but here's what i think and i'll let someone confirm or provide the correct answer... from y=mx+c I believe that 138 is the distance she was away from home after 3 seconds.

Answer 2

after t "hours"

Answer 3

thought she was that far (138) at the beginning.

Answer 4

When t=0

Answer 5

no IsTim - sasogeek is right (except for the units of time).

Answer 6

40*3 would change the distance when t=0

Answer 7

Sigh. IsTim is wrong again.

Answer 8

but IsTim has learnt now :D

Answer 9

well put saso :D

Answer 10

Thanks for your help guys

Answer 11

anytime ;)