A factory recycles oil to make biofuel. It takes 20 litres of used oil to make 17 litres of biofuel.
The used oil is 10p per litre and the biofuel can be sold for 40p per litre.
How much used oil will be required to make a PROFIT of £300 each day in the factory?

what is the question?

step-by-step explanation:

see attached

step-by-step explanation:

given the function as;

write the equation replacing f(x) with y

form   and fill a table containing values of y with corresponding values of x

you can take a range for   values of x as -3≤x≤3

solving for x=-3

for x=-2

repeat the same procedure to get the values of y for the remaining ,x=-1 to x=3

plot the values of y against values   of x and obtain the following graph

a

step-by-step explanation: