f(x)+2
f(x)-2
f(x+2)
f(x-2)
These are the answer choices
jhonyy9 (jhonyy9):
sorry but i not can open this site can you upload it here please
OpenStudy (anonymous):
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OpenStudy (anonymous):
did u get it now
jhonyy9 (jhonyy9):
yes
jhonyy9 (jhonyy9):
so than you see the graph where the graph interesect the axe y on unit 1 how many will be x for this point the intersection ?
OpenStudy (anonymous):
- .5
jhonyy9 (jhonyy9):
when this diagram intersect the axe y how many will be there x ?
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jhonyy9 (jhonyy9):
y there is equal 1
jhonyy9 (jhonyy9):
so do you know the coordinates points (0,0) what mean ?
OpenStudy (anonymous):
yes
jhonyy9 (jhonyy9):
x=?
y=?
OpenStudy (anonymous):
i know y is (0,1)
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jhonyy9 (jhonyy9):
yes right
OpenStudy (anonymous):
i'm confused
OpenStudy (anonymous):
i hate graphs
jhonyy9 (jhonyy9):
but than you check now these choices so i think this point (0,1) you not can edit it with them - yes ? try it please
jhonyy9 (jhonyy9):
so than you give to x value zero you need getting for y = 1
and i see there not is possible with indifferent what use it for - yes ?
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OpenStudy (anonymous):
ok
jhonyy9 (jhonyy9):
wait moment please
for x=1 result y=4
can you get it anywhere ?
OpenStudy (anonymous):
is it going to be f(x+2)
OpenStudy (anonymous):
there's an intersection point at (1,4)
OpenStudy (anonymous):
and one at (-.5,1)
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OpenStudy (anonymous):
another at (-6,-2) i'm guessing
jhonyy9 (jhonyy9):
check it please -5 is with -2 too same -6
OpenStudy (anonymous):
ok
jhonyy9 (jhonyy9):
so you said that believ it f(x+2)
why ? how you prove it ?
OpenStudy (anonymous):
i just guessed... x=1 and i divide 4 by2
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jhonyy9 (jhonyy9):
sorry what mean this 3(2)x
this 2 inside parentheses wan mean ?
jhonyy9 (jhonyy9):
what mean - sorry
OpenStudy (anonymous):
those are the answer choices
OpenStudy (anonymous):
f(x)+2
f(x)-2
f(x+2)
f(x-2)
jhonyy9 (jhonyy9):
no
for the function f(x) = 3(2)x
what is 2 inside parentheses here next 3 ?
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OpenStudy (anonymous):
y
jhonyy9 (jhonyy9):
is exponent ?
jhonyy9 (jhonyy9):
or you dont know it really ?
OpenStudy (anonymous):
the x is an exponent
OpenStudy (anonymous):
3(2)^x
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jhonyy9 (jhonyy9):
so there are 3*2^x ?
OpenStudy (anonymous):
yes
OpenStudy (anonymous):
is it going to = 6^x
jhonyy9 (jhonyy9):
no this is wrong because the exponent is just for 2 and for 3 not
jhonyy9 (jhonyy9):
so than there is 3*2^x
for x=0 result how many ?
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OpenStudy (anonymous):
0?
jhonyy9 (jhonyy9):
no
you dont know that every integers on exponent - power - zero equal ?
jhonyy9 (jhonyy9):
equal one
OpenStudy (anonymous):
=1
OpenStudy (anonymous):
anything to 0=1
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jhonyy9 (jhonyy9):
so in tis case of your exercise how many will result the exponent zero ?
OpenStudy (anonymous):
1
jhonyy9 (jhonyy9):
there are 3*2^0 = ?
OpenStudy (anonymous):
6
jhonyy9 (jhonyy9):
above you have said that 2^0 = 1
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OpenStudy (anonymous):
im confused
OpenStudy (anonymous):
3*2^0=3
jhonyy9 (jhonyy9):
yes so than check the graph for what function will get these choices - one from these choices right ?
OpenStudy (anonymous):
yep
OpenStudy (anonymous):
f(x-2)?
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jhonyy9 (jhonyy9):
why ? can you prove it with points from the diagram ?
jhonyy9 (jhonyy9):
for x=1 f(x-2)=f(1-2)=f(-1) = 3(2)^-1 = ?
jhonyy9 (jhonyy9):
not is right for x=1 you need getting that you see this diagram f(1)= 4
OpenStudy (anonymous):
confused!
jhonyy9 (jhonyy9):
sorry - sorry
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jhonyy9 (jhonyy9):
i see it now but you need prove it how you have got f(x-2) right sure - because you have wrote it above - can you prove it now for me here ?
OpenStudy (anonymous):
can u show me how to prove it
OpenStudy (anonymous):
im confused on graphs
OpenStudy (anonymous):
is f(x-2) correct?
jhonyy9 (jhonyy9):
f(x)=3*2^x
f(0)=3*1=3
f(x-2) = 3*2^x = f(x)
not is - sorry
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jhonyy9 (jhonyy9):
f(x)+2
f(x)-2
f(x+2)
f(x-2)
f(x)= 3*2^x
f(1)= 3*2=6
sorry i not get it right - you have wrote your exercise right sure and these choices too ?
OpenStudy (anonymous):
yes
OpenStudy (anonymous):
it's ok i'll just guess an answer
OpenStudy (anonymous):
thank u tho
jhonyy9 (jhonyy9):
np
was my pleasure - i think there is something wrong or i dont understand it right
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OpenStudy (anonymous):
it's ok
jhonyy9 (jhonyy9):
@Help100 are you here again please ?
jhonyy9 (jhonyy9):
i have got it right now
jhonyy9 (jhonyy9):
look please on the diagram there is for x=1 y=4 yes ?
jhonyy9 (jhonyy9):
so than try
f(x) -2 for x=1 how many will result for you ?
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jhonyy9 (jhonyy9):
you know that f(x)=3*2^x
so for x=1 how many will result f(1)= ?
jhonyy9 (jhonyy9):
f(1)=3*2^1 = ?
jhonyy9 (jhonyy9):
= 3*2=6
so than you see f(1) -2= 6-2=4
what mean that for x=1 result y=4 what there are exactly than you see on the diagram
the right choice will be f(x)-2
OpenStudy (anonymous):
ok... thank u so much
jhonyy9 (jhonyy9):
i m happy that on the end i have got the right answer - choice - hope so much that you understand it now right sure - yes ?
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jhonyy9 (jhonyy9):
ok.
was my pleasure
good luck
bye and anytime than i m online
bye