Question

Pic Below! Ill fan and medal for best answer!

Answer 1

@priyar

Answer 2

can u differentiate :
y=-18x+120..taking alue from the last q?

Answer 3

dy/dx=?

Answer 4

what does the d stand for?

Answer 5

dy means very very small change in y

Answer 6

Ok so than what do i do next?

Answer 7

Ex: y = 2x+3
then dy/dx= 2 +0

Answer 8

do the same for this

Answer 9

dy/dx is nothing but the slope of the equation..

Answer 10

do u know how to find slope?

Answer 11

@horsegal244 ?

Answer 12

Sry i dont...

Answer 13

ok then..did u see the example i gave?

Answer 14

dy/dx=?

Answer 15

Im sry this is confusing me...

Answer 16

ok i will do this one as an example but pls be sure to revise these concepts.. ok?

Answer 17

Ok

Answer 18

here dy/dx=-18 (Function 2) and..
for Function 1..slope=dy/dx= (y2-y1)/(x2-x1) where (x1,y1) and (x2,y2) are two points on the function..Here i have taken 2 values from the given table (you can choose any two..) we have,
slope=dy/dx = (80-100)/(2-1) = ?

Answer 19

can u simplify this?

Answer 20

20 and 1

Answer 21

u mean (-20)/1 right?

Answer 22

Yea

Answer 23

so rate of change of Function 1 = -18
rate of change of Function 2 = -20
So what is the correct option?

Answer 24

Function 2?

Answer 25

no i am asking which statement is correct..

Answer 26

Oh A

Answer 27

WELL DONE!!

Answer 28

Yay! ill tag you in it :)

Answer 29

in what?

Answer 30

sorry..i got to go..