Recent content by salemchic05

I need to create a function that has one turning point and one point of inflection. I have no idea what I'm doing!

We're in the derivatives chapter, so we assume finding the answer to this requires the use of a derivative, but we are completely lost. A bus will hold 60 people. The fare charged (p dollars) is related to the number x of people who use the bus by the formula p=[3-(x/40)]^2. (a) Write a...

We have to find the max/min of a derivative and we can't figure out how to find the roots of the function. The equation is y'=-5x^4-7x^2+10x+4. We tried factoring, but that won't work, the quadratic equation doesn't work, and we don't know how to solve for x. :cry:

I have a concept question that asks, "When the bulb of a mercury-in-glass thermometer is inserted into boiling water, the mercury column first drops slightly before it begins to rise. Account for this phenomenon." I have no idea why. Any ideas?