Answer:
y=-1x+4
Step-by-step explanation:
Function 1
rate of change = (80-100)/(2-1) = -20
y = -20x + 120
function 2
y = -18x + 120
rate of change = -18
answer
function 2 shows a greater rate of change
First you need to know how much each guest will eat
Table a is 3 b is 2 and c is 1