5. Given: C-100+8(Y-T IfT-0, what is the valuc of C when Y-1,000? a Answer: b If

Question

5. Given: C-100+8(Y-T IfT-0, what is the valuc of C when Y-1,000? a Answer: b IfT 100, what is the value of C when Y 1,000? Answer 6 Line A Line B a. Line B in the graph above illustrates a(n) relationship between X and Y Fill in the above blank with either positive or pegative At point C, the value of X given by Line A is b. the value ofX given by Line B. Fill in the above blank with one of the following: the same as greater than less than 7. Suppose the relationship between X and Y is given by the equation Y-100+ 75x. When X is equal to 0, Y is equal to- b. When X is equal to 100, Y is equal to when X increases by 1 unit, Y increases by X and Y are Fill in the above blank with either pesitively or negativeh -units. related. d.

Explanation / Answer

Question 5

(a)

C = 100 + 0.8(Y - T)

T = 0

Y = 1,000

C = 100 + 0.8(1,000 - 0)

C = 100 + (0.8*1,000)

C = 100 + 800

C = 900

The value of C is 900.

(b)

C = 100 + 0.8(Y-T)

T = 100

Y = 1,000

C = 100 + 0.8(1,000 - 100)

C = 100 + (0.8*900)

C = 100 + 720

C = 820

The value of C is 820.

Question 6

(a)

Line B in the graph is sloping downwards.

A downward sloping line indicates negative relationship between variables taken on two axis.

So,

Line B in the graph above illustrates a negative relationship between X and Y.

(b)

At point C, Line A and Line B are intersecting each other.

At the point of intersection, the value of a variable (either on x-axis or y-axis) provided by the intersecting lines is always equal.

So,

At point C, the value of X given by Line A is the same as the value of X given by Line B.

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