A = (f(x) âf(a)) /(x â a), 'A' represents the average slope. Here (x-a) is used to represent the change in input values and f(x) â f(a) is used to denote the change in output of the function f(x). Step 3: Now we will choose any random values for variables 'x' and 'a'.
Depending on the grade, pulled muscles can take one to eight weeks to heal. For the first 72 hours, apply ice, use elevation and, in consultation with a doctor, take anti-inflammatory medication. After 72 hours, use hot packs to bring blood into the muscle and provide nourishment, which accelerates healing. Massage or physical therapy can hasten the healing process.
Question: How long does it take for a strain to heal, and when can I return to sports after such an injury? Answer: Well, let's start with the definition of a strain. A strain is an injury, a stretching, or even a tearing of what we call the muscular tenuous unit. The tendon and the muscle that attaches to it, when those are injured or torn, we call that a strain: s-t-r-a-i-n. When it's a ligament, which attaches one bone to another crossing a joint, we call that a sprain with a p.. When we're talking about strains, we grade them: one, two and three.