Math

QuestionFind the domain of H(x)=5x3036x2H(x)=\frac{5 x-30}{36-x^{2}} and its vertical asymptote(s). Choices included.

Studdy Solution

STEP 1

Assumptions1. The function is given by H(x)=5x3036xH(x)=\frac{5x-30}{36-x^{}} . We are asked to find the domain of the function, which is the set of all possible x-values.
3. We are also asked to find the vertical asymptote(s) of the function, which are the x-values where the function approaches infinity or negative infinity.

STEP 2

The domain of a function is the set of all possible x-values that will not make the function undefined. A function becomes undefined when the denominator of a fraction is zero because division by zero is undefined.
So, we need to find the x-values that will make the denominator of the function zero.
Set the denominator equal to zero and solve for x36x2=036-x^{2} =0

STEP 3

This is a quadratic equation in the form of ax2+bx+c=0ax^{2} + bx + c =0. We can solve it by factoring, completing the square, or using the quadratic formula. In this case, factoring is the easiest method.
Factor the equation(6x)(6+x)=0(6-x)(6+x) =0

STEP 4

Setting each factor equal to zero gives the solutions to the equation6x=06-x =0
and6+x=06+x =0

STEP 5

olving these equations givesx=x =
andx=x = -

STEP 6

These are the x-values that make the denominator zero, so they are excluded from the domain of the function. Therefore, the domain of the function is all real numbers except -6 and6. This corresponds to choice A in the problem statement{xx6,6}\{x \mid x \neq-6,6\}

STEP 7

Next, we need to find the vertical asymptote(s) of the function. A vertical asymptote is a vertical line at an x-value where the function approaches infinity or negative infinity. This happens at the x-values that make the denominator zero, which we already found in the previous steps.
Therefore, the vertical asymptotes of the function are x=6x = -6 and x=6x =6. This corresponds to choice A in the problem statementThe vertical asymptote(s) is(are) x=6x = -6 and x=6x =6.

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