solving equations from 2 points(y=m(x)+b)
(2,-1) (3,-3)
y=-2+3
slope=-1+3/2-3=2/-1=-2
-1=-2(2)+b
-1=-4+b
-1=-4+3
b=3
(1,8)(5,128)
y=4(2)^x
(6,5)(7,-6)
(6.5,-0.5)
$22,000 at 3% fro 5 years
$25,300.00
James decides to invest his money in a Roth IRA. He puts $6000 into the account that earns 9% compounded annually. How much will his account be worth in 10 years?
$14,204.18
(0,5)(5,2)
y=3/-5x+5
(1,12)(3,108)
y=4(3)^x
(-2,1)(-6,1)
(-4,1)
$1,990 at 13% fro 2 years
$2,507.40
$18000 at 15% compounded annually for 4 years
$31482.11
(0,4)(3,-3)
y=7/-3x+4
(1,9)(4,243)
y=3(3)^x
(-9,-4)(-4,-8)
(-6.5,-6)
$47,600 at 7% for 3 years
$57,596.00
$120 at 5% compounded annually for 2 years
$132.30
(1,4)(2,-3)
y=-7x+11
(1,10)(3,250)
y=2(5)^x
(8,7)(-3,3)
(2.5,5)
$29,000 at 11% for 2 years
$35,380.00
$840 at 12% compounded annually for 7 years.
$1856.97
(0,-5)(-4,-3)
y=-1/2x-5
(3,24)(5,1536)
y=3/64(8)^x
(0,10)(10,4)
(5,7)
$50,000 at 15% for 1.5 years
$61,250.00
$51,000 at 4% compounded annually for 2 years
$55161.60