Question. which of the following are rational functions?
f(x) = 0
f(x)= (3x-1)/(x^2-4x+5)
f(x)=e^x
f(x) =(sinx)/(cosx)
f(x) =-4x^-3+5x^-1+7-18x^2
f(x) = x^1/2 – x+ 8
all polynomials can be thought of as rational functions.

You will get 25 points an image of a rectangular prism is shown below: part a: a cross section of the prism is cut with a plane parallel to the base. what is the name of the shape created by the cross section? explain your answer. (5 points) part b: if a cross section of the prism is cut perpendicular to the base, what would be the shape of the resulting cross section? explain your answer. (5 points)

Ivan and jeff buy a package of 8 pens for $4.00. ivan wants 5 of the pens, and jeff wants 3.how much should each student pay?

What term makes it inconsistent y=2x - 4