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Find all vertical asymptotes of the following function.
f(x)=(2x+10)/(x^(2)-16)

Find all vertical asymptotes of the following function.\newlinef(x)=2x+10x216f(x)=\frac{2 x+10}{x^{2}-16}

Full solution

Q. Find all vertical asymptotes of the following function.\newlinef(x)=2x+10x216f(x)=\frac{2 x+10}{x^{2}-16}
  1. Identify Vertical Asymptotes: To find the vertical asymptotes of the function, we need to determine where the denominator is equal to 00, because vertical asymptotes occur at values of xx that make the denominator undefined.
  2. Set Denominator Equal to Zero: Set the denominator equal to zero and solve for xx: x216=0x^2 - 16 = 0.
  3. Factor Quadratic Equation: Factor the quadratic equation: (x4)(x+4)=0(x - 4)(x + 4) = 0.
  4. Find Values of x: Find the values of xx that make the equation true: x4=0x - 4 = 0 or x+4=0x + 4 = 0.
  5. Solve Equations for xx: Solve each equation for xx: x=4x = 4 and x=4x = -4.
  6. Check Numerator for Zero: Check if these values of xx also make the numerator zero, because if they do, they might be holes instead of vertical asymptotes. The numerator is 2x+102x + 10, so we plug in x=4x = 4 and x=4x = -4 to see if it equals zero.
  7. Numerator for x=4x = 4: For x=4x = 4, the numerator is 2(4)+10=8+10=182(4) + 10 = 8 + 10 = 18, which is not equal to zero.
  8. Numerator for x=4x = -4: For x=4x = -4, the numerator is 2(4)+10=8+10=22(-4) + 10 = -8 + 10 = 2, which is also not equal to zero.
  9. Confirm Vertical Asymptotes: Since neither x=4x = 4 nor x=4x = -4 make the numerator zero, they are indeed vertical asymptotes of the function f(x)f(x).