A Farm stand sells two types of grapes the cost of green grapes can be represented by the equation y=1.5x, where y is the total cost for x pounds. the graph represent the cost of black grapes. what statement must be true? answers
a) three pounds of green grapes cost 6.00
b) two pounds of black grapes cost 3.00
c)black grapes cost less per pound than green grapes
d)black grapes cost more per pound the green grapes

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.