Which of the following equations below is a rational function ? A. y=-3/10+5x
B. y=- 4/3 x +7
C. y=(x/12)^2 -x+11
D. y=5x+2x^2/7

Just tell me how to set up the equation.

For problems 29 - 31 the graph of a quadratic function y=ax^2 + bx + c is shown. tell whether the discriminant of ax^2 + bx + c = 0 is positive, negative, or zero.

Afunction, f(x), represents the height of a plant x months after being planted. students measure and record the height on a monthly basis. select the appropriate domain for this situation. a. the set of all positive real numbers b. the set of all integers oc. the set of all positive integers od. the set of all real numbers reset next