1. x=4, y=0
3. x=2.6666, y=0.3333
For this case we have the following function:

By definition, we have that the domain of a function is given by all the values for which the function is defined. The given function is not defined when the denominator is zero.
So:

Thus, the function is not defined at 
The domain is given by all real numbers except 2.
Answer:
The domain is given by all real numbers except 2.
9.88 • 10°
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Ten to the power of zero
70 x 100 = 7,000
Therefore, 70 hundred is equal to 7 thousands.