Q190: Identify the given function as a
Q191: <span class="ql-formula" data-value="\mathrm{y}"><span class="katex"><span class="katex-mathml"><math xmlns="http://www.w3.org/1998/Math/MathML"><semantics><mrow><mi mathvariant="normal">y</mi></mrow><annotation
Q192: Find the domain of the rational
Q193: <span class="ql-formula" data-value="\frac{x^{2}-9}{x^{2}+4 x+4} \div \frac{3 x-9}{x^{2}-3
Q194: Simplify the difference quotient <span
Q196: Simplify the rational expression. (Assume the
Q197: <span class="ql-formula" data-value="\frac{(2 \mathrm{x}-5)(\mathrm{x}+2)}{(\mathrm{x}+8)(\mathrm{x}-3)} \div \frac{(\mathrm{x}+2)(3 \mathrm{x}+5)}{(\mathrm{x}+8)(\mathrm{x}-3)}"><span
Q198: <span class="ql-formula" data-value="\frac{6}{(x+2)^{2}}+\frac{8}{x+2}"><span class="katex"><span class="katex-mathml"><math xmlns="http://www.w3.org/1998/Math/MathML"><semantics><mrow><mfrac><mn>6</mn><mrow><mo stretchy="false">(</mo><mi>x</mi><mo>+</mo><mn>2</mn><msup><mo
Q199: For the given rational functions
Q200: <span class="ql-formula" data-value="\frac{x}{x+4}-\frac{4}{x-4}=\frac{x^{2}+16}{x^{2}-16}"><span class="katex"><span class="katex-mathml"><math xmlns="http://www.w3.org/1998/Math/MathML"><semantics><mrow><mfrac><mi>x</mi><mrow><mi>x</mi><mo>+</mo><mn>4</mn></mrow></mfrac><mo>−</mo><mfrac><mn>4</mn><mrow><mi>x</mi><mo>−</mo><mn>4</mn></mrow></mfrac><mo>=</mo><mfrac><mrow><msup><mi>x</mi><mn>2</mn></msup><mo>+</mo><mn>16</mn></mrow><mrow><msup><mi>x</mi><mn>2</mn></msup><mo>−</mo><mn>16</mn></mrow></mfrac></mrow><annotation encoding="application/x-tex">\frac{x}{x+4}-\frac{4}{x-4}=\frac{x^{2}+16}{x^{2}-16}</annotation></semantics></math></span><span