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Find 
lim_(x rarr-3)g(x) for

g(x)=sqrt(7x+22).

Find limx3g(x) \lim _{x \rightarrow-3} g(x) for\newlineg(x)=7x+22 g(x)=\sqrt{7 x+22} \text {. }

Full solution

Q. Find limx3g(x) \lim _{x \rightarrow-3} g(x) for\newlineg(x)=7x+22 g(x)=\sqrt{7 x+22} \text {. }
  1. Identify function and point: Identify the function and the point at which we need to find the limit.\newlineWe have the function g(x)=7x+22g(x) = \sqrt{7x+22} and we need to find the limit as xx approaches 3-3.
  2. Substitute value into function: Substitute the value of xx into the function to see if the function is defined at that point.\newlineLet's substitute x=3x = -3 into the function: g(3)=7(3)+22=21+22=1g(-3) = \sqrt{7(-3) + 22} = \sqrt{-21 + 22} = \sqrt{1}.
  3. Check if result is real number: Check if the result from Step 22 is a real number. Since 1\sqrt{1} is a real number (specifically, 11), the function is defined at x=3x = -3.
  4. Conclude the limit: Conclude the limit based on the previous steps.\newlineSince the function is defined at x=3x = -3 and we have a real number as a result, the limit of g(x)g(x) as xx approaches 3-3 is simply the value of the function at x=3x = -3.

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