Using a calculator how can I work out the cost of something? For example it costs you £20 to buy 3000 pencils. how much does it cost to buy 70,000

what id do is just times it by ten then give or take some then you might find your answer that way

Step-by-step explanation:

(1,4) is on graph of f(x)

f(1) = 4

so 1/4 f(x)

1/4 f(1)

1/4. ×4

1

so point for function 1/4. f(x) is (1,1)