Jared’s stock portfolio grows according to the formula a=2x^2-31x+25, where a is the amount in the portfolio, in thousands, and x is the amount of time the money has been in the portfolio, in months. When will Jared’s portfolio be at a value of 10,000 dollars?

Guest Aug 13, 2021

#1**+1 **

Jared’s stock portfolio grows according to the formula a=2x^2-31x+25, where a is the amount in the portfolio, in thousands, and x is the amount of time the money has been in the portfolio, in months. When will Jared’s portfolio be at a value of 10,000 dollars?

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You either have to enter the investment time or the invested capital.

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asinus Aug 13, 2021

#2**+1 **

10 = 2x^2 -31x + 25 (10 is 10 000 in thousands)

2x^2 -31x +15 = 0 Quadratic formula shows x = 15 months ( 1/2 month also shows as a possible....but unlikely)

ElectricPavlov Aug 13, 2021