Microeconomics,, 16th Canadian Edition

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  1. Suppose the relationship between the government’s tax revenue
    (T) and national income (Y) is represented by the following
    equation: Plot this relationship on a scale
    diagram, with Y on the horizontal axis and T on the vertical axis.
    Interpret the equation.

  2. The following questions will provide practice working with
    simple linear functions. All questions refer to a coordinate graph
    with the variable X on the horizontal axis and the variable Y on
    the vertical axis.
    a. If two points on a straight line are and
    what is the slope of the line?
    b. If point A is at and point B is at
    what is the slope of the straight line
    joining points A and B?
    c. What is the slope of the function described by
    d. What is the slope of a line described by
    e. What is the slope of a line described by
    f. What is the Y-intercept of the function
    g. What is the Y-intercept of the function
    h. What is the X-intercept of the function

  3. Suppose ABC Corp. spends $100 000 per year on some basic level
    of advertising, regardless of its revenues. In addition, the
    company spends 15 percent of each dollar of revenue on extra
    advertising. Write a mathematical equation that describes the
    functional relation between advertising (A) and revenue (R).


T= 10 +0.25Y.

(X= 3 , Y = 2 )
(X= 12 , Y = 5 ),
(X= 20 , Y= 20 )
(X= 10 , Y = 40 ),

Y = 12000 −0.5X?
Y =6.5X?
Y = 27 +3.2
Y = 1000 +m
Y =− 100 + 10
Y = 10 −0.1X
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