Question

Please help me its a big grade

Answer 1

y=⅖x

Explanation:

for x=40:

⅖x = ⅖×40 = 16 = y

for x=20:

⅖x = ⅖×20 = 8 = y

for x=10:

⅖x = ⅖×10 = 4 = y

Hence, proved.