Consider the following function. f(x) = (2x)/(x − 4)

Describe the local behavior of the function.
f(x) is undefined at x = 4

As x approaches this value from the left side, f(x) approaches ?

As x approaches this value from the right side, f(x) approaches ?

Describe the end behavior of the function.
As x → ∞, f(x) →

and as
x → −∞, f(x) →

I’m really having a tough time understanding. The answers I think are right keep getting dismissed by the homework website... I would super appreciate the help and also how you got the answer!

Adoctor administers a drug to a 38-kg patient, using a dosage formula of 50 mg/kg/day. assume that the drug is available in a 100 mg per 5 ml suspension or in 500 mg tablets. a. how many tablets should a 38-kg patient take every four hours? b. the suspension with a drop factor of 10 ggt/ml delivers the drug intravenously to the patient over a twelve-hour period. what flow rate should be used in units of ggt/hr? a. the patient should take nothing pills every four hours. (type an integer or decimal rounded to the nearest hundredth as needed.)

At your job you're paid $50 per week plus $3 per sale at least how many saled do you need to make in order to have over $250

Will mark ! (10 points also! ) if x varies inversely with y and x =6 when y= 10, find y when x=8 a. y=4.8 b. y=7.5 c. y=40/3 d. y=4/15