What is the scale factor of the dilation?

An energy plant is looking into putting in a system to remove harmful pollutants from its emissions going into earth's atmosphere. the cost of removing the pollutants can be modeled using the function c = 25000p/100 -p what is the vertical asymptote?

Which graph has a rate of change of zero

What is the point of inflection for the function f(x)=2cos4x on the interval (0, pi/2)