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
The constant of proportionality is the continuous ratio betwwen two variables.
Whats the the question i can't write it in standard form if i have nothing to write
X=10.13 is the correct answer I think