O is the centre of sector OAB. CD is another arc, with centre O and r cm. DB=2cm. if the area of ABDC is one-third the area of the sector OCD. find the value of r.​

step-by-step explanation: s

what is the your question?

graph #4 (last graph) depict the function   f(x)= -m(x-d)^1/5 i

step-by-step explanation:

we know that

m=slope

but in this function slope is -m that means slope is decreasing and it is decreasing by 1/5 points down the x-axis.

which is shown in graph four

a decreasing slope down x-axis by 1/5 points.

hence 4th graph is the right option for this.