linear functions and rates of change

So I am trying to get back on the right schedule with blogs, but to make sure all basis are covered I'll begin with sections 1.2 and 1.3.

The most difficult part from these sections was calculating the intercept (b) in order to fulfill the linear function of Y= f(x) = b + mx. The slope m was easier to calculate (rise over run) from using two different points. but b was more difficult because sometimes its confusing which equation to set equal to 0 in order to find the needed intercept. It is often necessary for me to re-read the question in order to see what the question was asking.

Being interested in medicine, my favorite question from the problem set from 1.3 # 26- 31 pertaining to maximum heart rates. By using two different equations to draw conclusions from; the MHR is actually not linear using the more accurate equation of MHR= 208-0.7a

Since next class is a lab, there isn't suppose to be a Blog... so stay tuned to hear about R