Refer to the 2018 tax rate schedules. If x equals taxable income and y equals the tax due, construct a function y = f(x) for Schedule Y-1.

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If Taxable Income is Over $0 9,525 38,700 82,500 157,500 200,000 500,000 Schedule X-Single The Tax is This Amount But Not Over $9,525 $0 + 38,700 952.50 + 82,500 4,453.50 + 157,500 14,089.50 + 200,000 32,089.50 + 500,000 45,689.50 + 150,689.50 + Plus This % 2018 Tax Rate Schedules Of the Excess Over 10% $0 12% 9,525 22% 38,700 24% 82,500 157,500 32% 35% 200,000 37% 500,000 Schedule Y-1-Married Filing Jointly or Qualified Widow(er) The Tax is Of the Excess This Amount Over If Taxable Income is Over But Not $0 $0 + Over $19,050 77,400 165,000 8,907.00 + 315,000 28,179.00 + 19,050 77,400 165,000 315,000 400,000 600,000 91,379.00 + 1,905 + 400,000 64,179.00 + 600,000 161,379.00 + Plus This % 10% 12% 22% 24% 32% 35% 37% $0 19,050 77,400 165,000 315,000 400,000 600,000