ABCD is a parallelogram. A
B
F
CĐ=a
CÁ = b
c
E
+
E is the point on CD such that CE: ED = 1:3
Fis the point on CA such that CF: FA = 1:4
Work out, in its simplest form, the ratio BE: BF
You must show all your working.

in the attachment.   i didn't see your choices.   the word which means there is choices.

step-by-step explanation:

(x,y)

x tells you how much left or right you go from the origin

y tells you how much down or up you go from the origin

so for example (-3,2), you go left 3 and up twice. i denoted which of the ordered pairs is which in my graph.