Question

Help?

http://prntscr.com/dgcroo
http://prntscr.com/dgcslu

Answer 1

First question,choose any point which is related to the curve...

Answer 2

let say i choose point(1,0)

Answer 3

\[point(1,0)=(x,y)\]

Answer 4

to determine which eqn is correct,sub. x=1 into each equations...
if u got the value of y which is = 0,therefore,that is the eqn related to that curve...

Answer 5

i will show the how to do for option A n u will need to do the rest...

Answer 6

option A
f(x)=3log(x)

Answer 7

sub. x=1 into the eqn

Answer 8

\[f(x)=3\log_{10}\color{red}{1}\]

Answer 9

bring down the power\[f(x)=\log_{10}1^\color{red}{3}\]

Answer 10

\[f(x)=0\]noted that f(x)=y

Answer 11

hmmm,it seems that point(1,0) can used in all eqns...

Answer 12

okay,let's try point(1,3)

Answer 13

option A
f(x)=3log(x)

Answer 14

I graphed D and believe thats the answer http://prntscr.com/dgd0mz

Answer 15

answer is not D... @Theoneandonly

Answer 16

ohh the curve has to be higher

Answer 17

yep,that's right! :)

Answer 18

alright I believe its B http://prntscr.com/dgd1um

Answer 19

yep,that's correct!

Answer 20

ok c:

Answer 21

if u want to double check it,use any point which is on the curve...

Answer 22

close this pleas ;-;