Which of the following equations is not in function notation?

a. f(x) = x + 3

b. w(r) = 9r - 7

c. y = kx

d. c(w) = w/4

Given f(x) = 2x^2- 5x+1, determine the function value f(2). do not f(x) = in your answer

Ms.ortiz sells tomatoes wholesale. the function p(x)=-80x^2+320x-10, graphed below, indicates how much profit she makes on a load of tomatoes if she makes on a load of tomatoes if she sells them for 4-x dollars per kilogram. what should ms.ortiz charge per kilogram of tomatoes to make on a load of tomatoes?

Which of the following equations is equivalent to x/3-6/x=1