Jacy has $1,000 to invest in either a fund that pays approximately 4.6% per year or in a savings account with an annual interest rate of 1.8%. Write a polynomial
function S(x) to represent the interest Jacy will earn in 1 year by investing x dollars in the fund and the remainder in the savings account

S(x)=18-0.028x

Step-by-step explanation:

Jacy has a total of $1,000 to invest.

Interest Rate of the Fund = 4.6% =0.046

Interest Earned on the Fund= Principal X Interest Rate = 0.046x

Interest rate of the Savings Account = 1.8% =0.018

Interest Earned on the Savings Account= 0.018(1000-x) =18-0.018x

Total Interest Earned by Jacy

= Interest Earned on the Fund+Interest Earned on the Savings Account

= 0.046x+ 18-0.018x

=18-0.028x

Therefore, the interest Jacy will earn in 1 year is:

S(x)=18-0.028x

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