Question

Consider the function g(x)=x/x-7.

a) Summarize the increasing and decreasing intervals.

b) Compare the slopes of the tangents at the points where i) x=7.5 and x=20
ii) x=6.5 and x=-20

Answer 1

done below:

http://www.jiskha.com/display.cgi?id=1386792229

Answer 2

ya i seen that on have the same question that i got, but when i try to sketch the function of x/x-7 on the wolfram Alpha i get the wrong answer, so i couldn't do a and b without graphing this.

*help me please*

Answer 3

probably did not get the correct graph because you skipped the brackets

If you entered the equation as
y = x/x-7 , you got a straight horizontal line at y = -6
because
y = x/x - 7 = 1-7 = -6

You MUST include brackets, such as
y = x/(x-7)
http://www.wolframalpha.com/input/?i=plot+y+%3D+x%2F%28x-7%29+%2C+y+%3D+x%2Fx+-+7

The graph in red would be yours,
the one in blue would be mine.

Answer 4

Thank you so much Reiny. thanks a lot.

Answer 5

I couldn't do g). someone help i need it in the morning. help me please. do it for me please. Show me the steps too please...please...

Answer 6

i meant b) please help me....