Mister Exam

Limit of the function 1/(8+x)

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The solution

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        1  
 lim  -----
x->-8+8 + x
limx8+1x+8\lim_{x \to -8^+} \frac{1}{x + 8}
Limit(1/(8 + x), x, -8)
Lopital's rule
There is no sense to apply Lopital's rule to this function since there is no indeterminateness of 0/0 or oo/oo type
The graph
05-15-10-51015-200200
Rapid solution [src]
oo
\infty
One‐sided limits [src]
        1  
 lim  -----
x->-8+8 + x
limx8+1x+8\lim_{x \to -8^+} \frac{1}{x + 8}
oo
\infty
= 151.0
        1  
 lim  -----
x->-8-8 + x
limx81x+8\lim_{x \to -8^-} \frac{1}{x + 8}
-oo
-\infty
= -151.0
= -151.0
Other limits x→0, -oo, +oo, 1
limx81x+8=\lim_{x \to -8^-} \frac{1}{x + 8} = \infty
More at x→-8 from the left
limx8+1x+8=\lim_{x \to -8^+} \frac{1}{x + 8} = \infty
limx1x+8=0\lim_{x \to \infty} \frac{1}{x + 8} = 0
More at x→oo
limx01x+8=18\lim_{x \to 0^-} \frac{1}{x + 8} = \frac{1}{8}
More at x→0 from the left
limx0+1x+8=18\lim_{x \to 0^+} \frac{1}{x + 8} = \frac{1}{8}
More at x→0 from the right
limx11x+8=19\lim_{x \to 1^-} \frac{1}{x + 8} = \frac{1}{9}
More at x→1 from the left
limx1+1x+8=19\lim_{x \to 1^+} \frac{1}{x + 8} = \frac{1}{9}
More at x→1 from the right
limx1x+8=0\lim_{x \to -\infty} \frac{1}{x + 8} = 0
More at x→-oo
Numerical answer [src]
151.0
151.0
The graph
Limit of the function 1/(8+x)