Question 1

Exhibit 1-8  
-Suppose a graph with Ron's weight on the vertical axis and his consumption of ice cream on the horizontal axis indicated that for each serving of ice cream he ate, Ron would gain 3 pounds, regardless of how much ice cream he had already eaten. This graph would show a

Accepted Answer

A) horizontal line at weight = 3 
B) straight line with slope = 3 
C) straight line with slope = 1/2 
D) straight line with slope = -3 
E) straight line with slope = -1/3

Question 2

On a graph, the origin represents

Accepted Answer

A) the dependent variable 
B) the variable that is the primary source of causation 
C) a caption or explanatory description of the symbols, colors, and measurements used on the graph 
D) the point at which the values of both variables are zero 
E) ancestry

Question 3

Exhibit 1-5  
-In Exhibit 1-2, curve B has a __________ slope that is __________ at every point.

Accepted Answer

A) positive; constant 
B) positive; changing 
C) negative; constant 
D) negative; changing 
E) changing; constant

Question 4

Exhibit 1-2  
-In Exhibit 1-2, at x = 12, the

Accepted Answer

A) value of y is larger on curve A than on curve B 
B) value of y is smaller on curve A than on curve B 
C) value of y is the same on curve A as on curve B 
D) slope of line A is negative 
E) slope of line B is positive

Question 5

The slope of a steep upward-sloping line is a smaller value than the slope of a nearly flat upward-sloping line.

Accepted Answer

A) True 
 B)False

Question 6

Exhibit 1-4  
-Which of the following must be true of line D in Exhibit 1-4?

Accepted Answer

A) A decrease in P is associated with a decrease in Q. 
B) An increase in P is associated with an increase in Q. 
C) There is no relation between P and Q. 
D) There is an inverse relationship between P and Q. 
E) There is a direct relationship between P and Q.

Question 7

If slope = 2 for a line on a graph with x on the horizontal axis and y on the vertical axis, then if

Accepted Answer

A) x decreases by 4, y decreases by 8 
B) x = -4, then y = -2 
C) y decreases by 4, x decreases by 8 
D) x = -4, y = -8 
E) x increases by 4, y decreases by 8

Question 8

One economic application of the slope of a line is

Accepted Answer

A) measuring unlimited wants 
B) behavioral analysis 
C) marginal analysis 
D) allocative efficiency 
E) rational self-interest

Question 9

The statement that there is an inverse relationship between x and y means that

Accepted Answer

A) x causes y 
B) y causes x 
C) x and y move in opposite directions 
D) either y causes x or x causes y 
E) there is no causal relationship between x and y

Question 10

Exhibit 1-6  
-The slope of a line is defined as the

Accepted Answer

A) change in the value of the variable on the vertical axis divided by the change in the value of the variable on the horizontal axis 
B) value of the variable on the horizontal axis divided by the value of the intercept on the vertical axis 
C) change in the value of the variable on the horizontal axis divided by the increase in the value of the variable on the vertical axis 
D) value of the variable on the vertical axis divided by the value of the variable on the horizontal axis 
E) change in the value of the variable on the vertical axis times the increase in the value of the variable on the horizontal axis

Question 11

Exhibit 1-16      
-Refer to exhibit 1-16. Which of the graphs illustrates a direct or positive relationship between variable X and variable Y?

Accepted Answer

A) a 
B) b 
C) c 
D) d 
E) e

Question 12

If a given value of x is associated with a particular value of y,

Accepted Answer

A) then x causes y 
B) then y causes x 
C) then x and y must be logically connected 
D) there are no other variables that affect the value of y 
E) there may be no causal relationship between x and y

Question 13

Exhibit 1-7  
-The slope of the straight line in Exhibit 1-5 is

Accepted Answer

A) greater at point a than at point b 
B) the same at points a and b 
C) zero because the line is straight 
D) negative because an inverse relation is shown 
E) positive because the line lies to the right of the y-axis

Question 14

Exhibit 1-14  
-Most economics graphs reflect the relationship between how many economic variables?

Accepted Answer

A) three 
B) two 
C) four 
D) thirty 
E) twenty

Question 15

Exhibit 1-15  
-Refer to Exhibit 1-13. The reason that Line (a) would shift to the position of Line (b) is

Accepted Answer

A) a change in quantity 
B) a change in price 
C) a change in an assumption about the relationship between the two variables observed 
D) a change from a positive relation to a negative relation 
E) a change from a negative relation to a positive relation

Question 16

Exhibit 1-14  
-Using Exhibit 1-12, calculate the slope of the curve where x equals 50.

Accepted Answer

A) 0 
B) 1 
C) infinite 
D) -1 
E) the slope cannot be determined because there is no tangent line

Question 17

A line is tangent to a curve if it

Accepted Answer

A) crosses the curve at one point 
B) touches the curve at one point, without crossing it 
C) crosses the curve at a minimum of two points 
D) never touches the curve 
E) forms a right triangle with the curve

Question 18

Exhibit 1-10  
-In Exhibit 1-8, the slope of the line is

Accepted Answer

A) negative for all values of x 
B) positive for all values of x 
C) zero at x = 7 
D) first negative, then positive as x increases 
E) negative for all values of y

Question 19

Exhibit 1-6  
-Along the curve in Exhibit 1-4,

Accepted Answer

A) if P = $6, then Q = 8 
B) if Q = 10, then P = $4 
C) the slope is equal to -1 
D) Q increases as P increases 
E) there is a positive relationship between Q and P

Question 20

Exhibit 1-16      
-Refer to exhibit 1-16. Which of the graphs illustrates an inverse or negative relationship between variable X and variable Y?

Accepted Answer

A) a 
B) b 
C) c 
D) d 
E) e

Exam 22:Understanding Graphs

Exhibit 1-8 -Suppose a graph with Ron's weight on the vertical axis and his consumption of ice cream on the horizontal axis indicated that for each serving of ice cream he ate, Ron would gain 3 pounds, regardless of how much ice cream he had already eaten. This graph would show a

On a graph, the origin represents

Exhibit 1-5 -In Exhibit 1-2, curve B has a slope that is at every point.

Exhibit 1-2 -In Exhibit 1-2, at x = 12, the

The slope of a steep upward-sloping line is a smaller value than the slope of a nearly flat upward-sloping line.

Exhibit 1-4 -Which of the following must be true of line D in Exhibit 1-4?

If slope = 2 for a line on a graph with x on the horizontal axis and y on the vertical axis, then if

One economic application of the slope of a line is

The statement that there is an inverse relationship between x and y means that

Exhibit 1-6 -The slope of a line is defined as the

Exhibit 1-16 -Refer to exhibit 1-16. Which of the graphs illustrates a direct or positive relationship between variable X and variable Y?

If a given value of x is associated with a particular value of y,

Exhibit 1-7 -The slope of the straight line in Exhibit 1-5 is

Exhibit 1-14 -Most economics graphs reflect the relationship between how many economic variables?

Exhibit 1-15 -Refer to Exhibit 1-13. The reason that Line (a) would shift to the position of Line (b) is

Exhibit 1-14 -Using Exhibit 1-12, calculate the slope of the curve where x equals 50.

A line is tangent to a curve if it

Exhibit 1-10 -In Exhibit 1-8, the slope of the line is

Exhibit 1-6 -Along the curve in Exhibit 1-4,

Exhibit 1-16 -Refer to exhibit 1-16. Which of the graphs illustrates an inverse or negative relationship between variable X and variable Y?

Exam 22:Understanding Graphs

Exhibit 1-8 -Suppose a graph with Ron's weight on the vertical axis and his consumption of ice cream on the horizontal axis indicated that for each serving of ice cream he ate, Ron would gain 3 pounds, regardless of how much ice cream he had already eaten. This graph would show a

On a graph, the origin represents

Exhibit 1-5 -In Exhibit 1-2, curve B has a __________ slope that is __________ at every point.

Exhibit 1-2 -In Exhibit 1-2, at x = 12, the

The slope of a steep upward-sloping line is a smaller value than the slope of a nearly flat upward-sloping line.

Exhibit 1-4 -Which of the following must be true of line D in Exhibit 1-4?

If slope = 2 for a line on a graph with x on the horizontal axis and y on the vertical axis, then if

One economic application of the slope of a line is

The statement that there is an inverse relationship between x and y means that

Exhibit 1-6 -The slope of a line is defined as the

Exhibit 1-16 -Refer to exhibit 1-16. Which of the graphs illustrates a direct or positive relationship between variable X and variable Y?

If a given value of x is associated with a particular value of y,

Exhibit 1-7 -The slope of the straight line in Exhibit 1-5 is

Exhibit 1-14 -Most economics graphs reflect the relationship between how many economic variables?

Exhibit 1-15 -Refer to Exhibit 1-13. The reason that Line (a) would shift to the position of Line (b) is

Exhibit 1-14 -Using Exhibit 1-12, calculate the slope of the curve where x equals 50.

A line is tangent to a curve if it

Exhibit 1-10 -In Exhibit 1-8, the slope of the line is

Exhibit 1-6 -Along the curve in Exhibit 1-4,

Exhibit 1-16 -Refer to exhibit 1-16. Which of the graphs illustrates an inverse or negative relationship between variable X and variable Y?

Exhibit 1-5 -In Exhibit 1-2, curve B has a slope that is at every point.