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How do you find the domain of #r(x)=(x+2)/8#?

Answer 1

Ethan Adkins

#{x|x in RR}#

It's just a line for this function:

#r(x)=(x+2)/8#

#r(x)=1/8x+1/4#

Every line has an all-real number domain and range.

#{x|x in RR}#

graph{(x+2)/8 [-5, 5, 10, 10, 5]}

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Answer 2

Ethan Adkins

To find the domain of ( r(x) = \frac{x + 2}{8} ), we need to determine all possible values of ( x ) for which the function is defined. Since the denominator cannot be zero, we set ( 8 \neq 0 ), which is always true. Therefore, the domain of ( r(x) ) is all real numbers.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.