A rectangle has an area of x^2-11x+30 and the length of x-5. What is the width?
2 answers:
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The first thing to is factor the denominator of the rational function:
to do this we'll need to find two number whose product is -3 and its sum is -2; those numbers are 1 and -3, so:
Now we can rewrite our rational function as follows:
Notice that we have a common factor (x-3) in both numerator and denominator; therefore we can cancel them:
Taking all the above into consideration we realize that x=3 is a removable discontinuity; the correct answer is the first one: there is a hole in x=3 and asymptote at x=-1.
Now we can rewrite our rational function as follows:
Notice that we have a common factor (x-3) in both numerator and denominator; therefore we can cancel them:
Taking all the above into consideration we realize that x=3 is a removable discontinuity; the correct answer is the first one: there is a hole in x=3 and asymptote at x=-1.