Question

state the range and domain:
y=3x

y=x^2-4x

y=1/x

Answer 1

for the first one, the domain and range are all real numbers

Answer 2

the second one, the domain is all real numbers and the range is all real numbers

Answer 3

the last one, the domain is all real numbers except 0 and the range is all real numbers except 0

Answer 4

The range of the second one is [-4,infinity)

Answer 5

shes right. my bad

Answer 6

so how would that be written for range and domain using XER and YER?