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Financial Algebra© Cengage/South-Western Slide 11
6-5
SOCIAL SECURITY AND MEDICARE
To compute paycheck deductions for Social Security.
To compute paycheck deductions for Medicare.
OBJECTIVES
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Financial Algebra© Cengage Learning/South-Western Slide 22
Social SecurityFederal Insurance Contributions
Act (FICA)FICA taxSocial Security taxMedicare taxmaximum taxable incomeSocial Security number
Key Terms
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Financial Algebra© Cengage Learning/South-Western Slide 33
Example 1Example 1
Ramiro got his first job in 2006. In that year, Social Security tax was 6.2% of income up to $94,200. Medicare tax was 1.45%. If Ramiro earned $73,210 in 2006, how much did he pay for Social Security and Medicare taxes?
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Financial Algebra© Cengage Learning/South-Western Slide 44
Example 2Example 2
Express the Social Security tax for 2006 as a piecewise function.
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Financial Algebra© Cengage Learning/South-Western Slide 55
EXAMPLE 3EXAMPLE 3
Graph the Social Security tax piecewise function from Example 2.
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Financial Algebra© Cengage Learning/South-Western Slide 66
Mark's Social Security tax was $3,500 during the year in the graph in Example 3. Use the graph to approximate his taxable income.
CHECK YOUR UNDERSTANDING
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Financial Algebra© Cengage Learning/South-Western Slide 77
EXAMPLE 4EXAMPLE 4
In 1988, Social Security tax was 7.51%, to the maximum income of $45,000. If Grace earned $51,211 in 1988, how much Social Security did she pay?
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Financial Algebra© Cengage Learning/South-Western Slide 88
In 1988 Ramona paid $2,853.80 in Social Security tax. What was Ramona's taxable income in 1988?
CHECK YOUR UNDERSTANDING