Question

If the range of y=25x+50 is {100,125,175} what is the domain?

Answer 1

If the range has all the 3 values, then take them one by one and solve for x (the domain):

I will do the first one,

If y = 100, 100 = 25x + 50, so solving for x you get x = 2. So x = 2 is in the domain.

Do the same for the other two values of y. Your final answer will have three numbers in the domain, one of then being 2.

Answer 2

okay so 125=25x+50 would the domain be 10?