Plot the marginal tx rates (measured on the y axis) againist the pretax income levels (measured on the x axis) explain the relationship between these variables.

Corporate Tax Rate Schedule Tax calculation Range of taxable income Base tax (Marginal rate x amount over base bracket) $0 to 50,000 to 75,000 to 100,000 to 335,000 to 10,000,000 to 15,000,000 to Over 18,333,333 $50,000 75,000 100,000 335,000 10,000,000 15,000,000 18,333,333 $0 (15% x amount over 7,500 + (25% x amount over 13,750 + (3490 x amount over 22,250 + (39% x amount over 113,900 + (34% x amount over 3,400,000 + (35% amount over 5,150,000 (38% amount over 6,416,667 + (35% amount over $0) 50,000) 75,000) 100,000) 335,000) 10,000,000) 15,000,000) 18,333,333)