Which of the following graphs represents a function that has a positive leading coefficient? Check all that apply.

A. Graph A
B. Graph B
C. Graph C
D. Graph D

Your food costs are $5,500. your total food sales are $11,000. what percent of your food sales do the food costs represent?

Find the x-intercepts for the parabola defined by this equation: y=-3x^2-6x+9

Consider the function f left parenthesis x right parenthesis equals 4 x squared minus 3 x minus 1f(x)=4x2−3x−1 and complete parts (a) through (c). (a) find f left parenthesis a plus h right parenthesis f(a+h); (b) find startfraction f left parenthesis a plus h right parenthesis minus f left parenthesis a right parenthesis over h endfraction f(a+h)−f(a) h; (c) find the instantaneous rate of change of f when aequals=77.