Suppose Ahmoud would spend $1200 per year on travel,even if his annual income were zero.As his income rises,he would spend 20% of each additional dollar of income on travel.Choose the correct mathematical equation that describes the functional relation between his travel spending (T)and his income (Y).
A)T = 0.2 + 1200Y
B)Y = 1200 + 0.2T
C)T = 1200 + 0.2Y
D)Y = 1200 - 0.2T
E)T = 1200 + 0.8Y

Question

Quizplus · Accepted Answer

The equation must reflect the fact that Ahmoud would spend $1200 even if his income were zero, so the equation starts with T = 1200. Then, for each additional dollar of income, he spends 20% on travel, which translates to 0.2Y in mathematical terms. Therefore, the equation becomes T = 1200 + 0.2Y, which is choice C.

Suppose Ahmoud Would Spend $1200 Per Year on Travel,even If