How do you graph #y=1/(x-7)+3# using asymptotes, intercepts, end behavior?

1 Answer
Nov 12, 2016

Answer:

The vertical asymptote is #x=7#
The horizontal asymptote is #y=0#
There are no oblique asymptotes.
The intercepts are #(0,20/7)# and #(20/3,0)#

Explanation:

As you cannot divide by #0#, a vertical asymptote is #x=7#

#lim_(x->-oo)y=lim_(x->-oo)1/x=0^(-)#

#lim_(x->+oo)y=lim_(x->+oo)1/x=0^(+)#

Therefore #y=0# is a horizontal asymptote.

#lim_(x->7^-)y=-oo#

#lim_(x->7^+)y=+oo#

There are no oblique intercept as the degree of the numerator is #<# the degree of the denominator.

Intercepts, when #x=0#, #y=-1/7+3=20/7#

When #y=0# #=>##1/(x-7)+3=0# #=>##x=20/3#
graph{3+1/(x-7) [-14.87, 25.66, -8.18, 12.09]}