What are the removable discontinuities of the following function? f (x) = StartFraction x squared minus 36 Over x cubed minus 36
2 answers:
Answer:
the removable discontinuities are at x = 6 and at x = -6
Step-by-step explanation:
Notice that the function has common binomial factor in numerator and denominator:
therefore, the removable discontinuities are those at x= 6 and x = -6 that correspond to zeros common in numerator and denominator, and therefore those associated with the (x + 6) factor, with the (x - 6) factor.
There is a non-removable discontinuity at x = 0.
The discontinuities can be removed by re-assigning the value of f(x) at x=6 (as 1/6), and at x = -6 (as -1/6)
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Answer:
d)
Step-by-step explanation:
Which algebraic expression is a polynomial?
Answer: A polynomial is an expression with variables and coefficients separated by addition and subtraction. The following are used when determining if an expression is a polynomial:
i) Variables of a polynomial must not have negative exponent.
ii) Variables of a polynomial must not have fractional exponent.
iii) Dividing by an exponent is not allowed
iv) Exponent radicals are not allowed.
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b) , is not a polynomial because exponent radicals are not allowed (√m)
c) is not a polynomial because dividing by an exponent is not allowed.
d) is a polynomial