Question

Marie is logging the number of radioactive isotopes she observes every minute. She has determined her function to be f(x) = -4x + 120.
Based on the situation above, describe any necessary restrictions to the domain and range. Provide justification for the restrictions. (10 points)

Answer 1

@savannah152426 @sleepyjess HELP please

Answer 2

Honestly if your judging just by the function itself: f(x) = -4x + 120.

the range and domain is definitely all real numbers.

Answer 3

this graph looks like this. where it eventually will touch any infinite number from negative and positive

Answer 4

but does the isotope every minute part have nothing to do with it

Answer 5

hmm, the point is that she uses the function f(x) = -4x + 120 to determine her isotopes. so it's more than likely your going to get your answer just from that function, which is all real numbers

Answer 6

ok do you think that's the only restriction to my domain and range?

Answer 7

@dtran5457

Answer 8

if it's all real numbers, that signals that there are NO restrictions what so ever