Find the balance in the account. $800 principal earning 7%, compounded annually, after 4 years $1,048.64 $1,024.00 $1,920,800.00 $3,424.00

After 4 years, the balance in the account will be of $1,048.64.

Step-by-step explanation:

Initial amount: $800

Year 1: $800 + (800 x 7 / 100) = $800 + $56 = $856

Year 2: $856 + (856 x 7 / 100) = $856 + $59.92 = $915.92

Year 3: $915.92 + (915.92 x 7 / 100) = $915.92 + $64.11 = $980.04

Year 4: $980.04 + (980.04 x 7 / 100) = $980.04 + $68.60 = $1,048.64

As we can see in this table, compounded annually, the interest rate of 7% over an initial amount of $800 will reach $1,048.64 in four years.

step-by-step explanation:

check above link.

graphically?   well, you graph them both, the solutions is where they both intersect each other, since there are two solutions, meaning they will meet twice, or namely the linear will run into the quadratic curve twice, and where they meet, those x,y coordinates are the solutions to the system.