Question

subtracting functions given in tables
an account after $x$ years of simple interest.

$x$

1

2

3

4

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$f(x)$

1,576.74

1,657.41

1,742.21

1,831.34

$x$

1

2

3

4

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$g(x)$

1,575

1,650

1,725

1,800

complete the table to show the difference in the value of the accounts for each year.

$x$

1

2

3

4

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$(f - g)(x)$

$square$

$square$

$square$

$square$

Explanation:

Step1: Define the difference function

$(f-g)(x) = f(x) - g(x)$

Step2: Calculate for x=1

$1,576.74 - 1,575 = 1.74$

Step3: Calculate for x=2

$1,657.41 - 1,650 = 7.41$

Step4: Calculate for x=3

$1,742.21 - 1,725 = 17.21$

Step5: Calculate for x=4

$1,831.34 - 1,800 = 31.34$

Answer:

$x$	1	2	3	4