anonymous
  • anonymous
Belinda wants to invest $1000. The table below shows the value of her investment under two different options for three different years: Number of years 1 2 3 Option 1 (amount in dollars) 1100 1210 1331 Option 2 (amount in dollars) 1100 1200 1300 Part A: What type of function, linear or exponential, can be used to describe the value of the investment after a fixed number of years using option 1 and option 2? Explain your answer. (2 points) Part B: Write one function for each option to describe the value of the investment f(n), in dollars, after n years. (4 points)
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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anonymous
  • anonymous
do you know how to do it
anonymous
  • anonymous
@misssunshinexxoxo
anonymous
  • anonymous
@amoodarya

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More answers

anonymous
  • anonymous
@welshfella
anonymous
  • anonymous
can you help me
welshfella
  • welshfella
i gotta go sorry Option 2 is linear
anonymous
  • anonymous
ok thanks
anonymous
  • anonymous
can some one help me
anonymous
  • anonymous
@Tinkerbell2001
anonymous
  • anonymous
do you know how to do this @Tinkerbell2001
anonymous
  • anonymous
option 1 is exponential
anonymous
  • anonymous
if you graph it the line will curve up slightly
anonymous
  • anonymous
ok so what would the functions look like
anonymous
  • anonymous
|dw:1435949012369:dw|
anonymous
  • anonymous
that's what option 1 would look like
anonymous
  • anonymous
|dw:1435949041634:dw|
anonymous
  • anonymous
thats what 2 would look like
anonymous
  • anonymous
ok cool but its says for put together a function and write it out do i just put those graphs as it
anonymous
  • anonymous
you need to find the equation for the lines
anonymous
  • anonymous
idk that part thats what i was trying to ask you about
anonymous
  • anonymous
ok lets find the equation for option 2 first
anonymous
  • anonymous
ok
anonymous
  • anonymous
it will be in the form y=mx+b
anonymous
  • anonymous
are you familiar with this?
anonymous
  • anonymous
yes
anonymous
  • anonymous
ok, try and solve it
anonymous
  • anonymous
so it will look like y=1000x+1100
anonymous
  • anonymous
yo @10115658
anonymous
  • anonymous
sorry i was afk
anonymous
  • anonymous
that isn't correct
anonymous
  • anonymous
how do you find the slope?
anonymous
  • anonymous
pick 2 points
anonymous
  • anonymous
lets pick (1,1100) and (2,1200)
anonymous
  • anonymous
slope is y2-y1/x2-x1
anonymous
  • anonymous
(1200-1100)/(2-1)
anonymous
  • anonymous
the slope is 100
anonymous
  • anonymous
now lets find the y-intercept
anonymous
  • anonymous
y=100x+b
anonymous
  • anonymous
plug in one of the points for x and y
anonymous
  • anonymous
1100=100+b
anonymous
  • anonymous
now solve for b
anonymous
  • anonymous
b=1000
anonymous
  • anonymous
ok, so now we have our equation y=100x+1000
anonymous
  • anonymous
now they want it in terms of f(n) and n so we rewrite it as f(n)=100n+1000
anonymous
  • anonymous
that's the answer for option 2
anonymous
  • anonymous
does that make sense?
anonymous
  • anonymous
you there?
anonymous
  • anonymous
yeah im here sorry

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