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Mathematics 8 Online
OpenStudy (anonymous):

I would greatly appreciate any help I can get. Thank you loves. Identify the asymptotes, domain, and range of the function. Check all that apply. f(x)= 1/x + 4 +3

OpenStudy (campbell_st):

ok.... which do you feel most confident about... domain, range or asymptotes..?

OpenStudy (anonymous):

I am equally confused on all of them

OpenStudy (campbell_st):

\[f(x) = \frac{1}{x + 4} + 3\] ok... start with the asymptotes... they are the value(s) of x that make the denominator of the fraction zero so solve x + 4 = 0 what do you get..?

OpenStudy (anonymous):

-4

OpenStudy (campbell_st):

great so you have found the vertical asymptote... x = -4 so the domain is next... do you think or can see any other restictions for x have attached part of the curve

OpenStudy (anonymous):

Im not sure.

OpenStudy (campbell_st):

ok... so the curve is continuous in both directions..... to the left and right of x = -4. so this means that there are no other problems you can input any x value into the function, examples could include -10, 30, 50000 and you will get an answer. so the domain is all real x, except...? what x value can't you use..?

OpenStudy (campbell_st):

here is the same graph again, but it shows the restriction in the range

OpenStudy (anonymous):

-4?

OpenStudy (campbell_st):

great so you have Domain: all real x except x = -4 vertical asymptote x = -4 so next the range from the most recent graph, what y value does the function get close to, but doesn't cross..?

OpenStudy (anonymous):

I figured it out, thank you so much for your help and have a great day.

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