What make something a Rational Function? Which Key Feature is the easiest to find and why? Which Key Feature is the most difficult to find and why?

One of the inventors of integrated circuits observed that the number of transistors that fit on an integrated circuit will double every 24 months. what type of relationship most appropriately models this situation?

In the figure below, triangle rpq is similar to triangle rts. what is the distance between p and q? a. 24 b. 42 c.50 d. 54

What is the factor form of x^2-9x+14