anonymous
  • anonymous
(FAN AND MEDAL) i really need help!!!
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
anonymous
  • anonymous
@jdoe0001 @jim_thompson5910
jdoe0001
  • jdoe0001
answer is "blank" since the question is "blank" it follows it so, logically
anonymous
  • anonymous
wait let me writte the question

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anonymous
  • anonymous
i need help on 3 and 4
1 Attachment
anonymous
  • anonymous
@ganeshie8 @jdoe0001
jim_thompson5910
  • jim_thompson5910
when you plug x = 0 into the f(x) function, what result do you get?
anonymous
  • anonymous
x=1?
anonymous
  • anonymous
@jim_thompson5910 ???
jim_thompson5910
  • jim_thompson5910
f(x) = 3(4)^x f(0) = 3(4)^0 f(0) = ???
anonymous
  • anonymous
f(0)=3?
jim_thompson5910
  • jim_thompson5910
yes, so (0,3) is one point on this curve
jim_thompson5910
  • jim_thompson5910
now plug in x = 1 and tell me what you get
anonymous
  • anonymous
x=1?
jim_thompson5910
  • jim_thompson5910
yeah instead of replacing x with 0, replace x with 1
anonymous
  • anonymous
(1, 2)
anonymous
  • anonymous
@jim_thompson5910
jim_thompson5910
  • jim_thompson5910
plug it into 3(4)^x
anonymous
  • anonymous
f(1) = 3* 4^1?
anonymous
  • anonymous
@jim_thompson5910
jim_thompson5910
  • jim_thompson5910
yeah, now evaluate what you just wrote down
anonymous
  • anonymous
f(1)=12?
anonymous
  • anonymous
@jim_thompson5910 ???
jim_thompson5910
  • jim_thompson5910
correct
jim_thompson5910
  • jim_thompson5910
if f(1) = 12, then what point is on this curve?
anonymous
  • anonymous
1?
anonymous
  • anonymous
(1, 2)?
jim_thompson5910
  • jim_thompson5910
(1,12) actually
jim_thompson5910
  • jim_thompson5910
the input is x = 1 the output of the function is y = 12 y is the same as f(x)
jim_thompson5910
  • jim_thompson5910
make sense?
anonymous
  • anonymous
yes ^_^
jim_thompson5910
  • jim_thompson5910
now plug in x = 2
anonymous
  • anonymous
f(1)= 3*4=12?
jim_thompson5910
  • jim_thompson5910
no just like before, instead of 1 plug in 2
jim_thompson5910
  • jim_thompson5910
plug 2 into 3(4)^x
anonymous
  • anonymous
10(2)^2?
jim_thompson5910
  • jim_thompson5910
idk how you're getting that
anonymous
  • anonymous
3(4)^2?
anonymous
  • anonymous
@jim_thompson5910 ???
jim_thompson5910
  • jim_thompson5910
much better
jim_thompson5910
  • jim_thompson5910
evaluate that
anonymous
  • anonymous
3*4^2?
jim_thompson5910
  • jim_thompson5910
what number is that expression equal to?
anonymous
  • anonymous
48
jim_thompson5910
  • jim_thompson5910
f(2) = 48 which means what point lies on the curve?
anonymous
  • anonymous
2?
jim_thompson5910
  • jim_thompson5910
|dw:1437354147178:dw|
jim_thompson5910
  • jim_thompson5910
|dw:1437354163352:dw|
anonymous
  • anonymous
48? ;/
jim_thompson5910
  • jim_thompson5910
I just posted it. Scroll up
anonymous
  • anonymous
so we done or what?
jim_thompson5910
  • jim_thompson5910
no
jim_thompson5910
  • jim_thompson5910
you have to find a bunch of points (3 or more). Then plot all of the points on the same xy grid. The last step is to draw a curve through all of the points
anonymous
  • anonymous
so the other point its (1, 2)
anonymous
  • anonymous
or (0, 2)
jim_thompson5910
  • jim_thompson5910
idk why you keep saying (1,2) when that's not correct
jim_thompson5910
  • jim_thompson5910
scroll back up to see what the true correct point should be
anonymous
  • anonymous
sorry, wait let me see
anonymous
  • anonymous
(0, 3)
anonymous
  • anonymous
idk ;/
anonymous
  • anonymous
its that right?
jim_thompson5910
  • jim_thompson5910
three points we found (0,3) (1,12) (2,48)
anonymous
  • anonymous
so whats nexts?
anonymous
  • anonymous
or we done?
jim_thompson5910
  • jim_thompson5910
plot all of the points on the same xy grid. Then draw a curve through all of the points
anonymous
  • anonymous
and thats all? right
jim_thompson5910
  • jim_thompson5910
yeah
anonymous
  • anonymous
thank you!!!
jim_thompson5910
  • jim_thompson5910
no problem
anonymous
  • anonymous
can you help to plot the points, sorry
anonymous
  • anonymous
@jim_thompson5910 ??
jim_thompson5910
  • jim_thompson5910
you can use desmos to plot the points https://www.desmos.com/calculator
jim_thompson5910
  • jim_thompson5910
or you can do it by hand on graph/grid paper
anonymous
  • anonymous
alright tank you so much!!!!! you're awesome! you think can you help me with number 4? please
jim_thompson5910
  • jim_thompson5910
you plug x = 3 into each function and determine the output
jim_thompson5910
  • jim_thompson5910
same with x = 10
anonymous
  • anonymous
thats for number 4?right?
jim_thompson5910
  • jim_thompson5910
yes
jim_thompson5910
  • jim_thompson5910
Amber: f(x) = 3(4)^x Ben: g(x) = 2(3)^x Carter: h(x) = 10(2)^x
anonymous
  • anonymous
and thats all
anonymous
  • anonymous
?
jim_thompson5910
  • jim_thompson5910
yes you need to plug x = 3 and x = 10 into each

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