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Exercise Answers: Module 41

Answers

1. a) yes; yes b) no; no c) yes; yes d) yes; yes 3. a) yes; yes b) yes; yes c) yes; yes d) no; no
5.

Graph of the equation y = 3x − 1.

 

 7.

Graph of the equation y = −3x + 3.
9.

Graph of the equation y = x + 2.

 11.

Graph of the equation y = −x − 3.

 
13.

Graph of the equation y = 2x.

 15.

Graph of the equation y = 3x.
17.

Graph of the equation y = 1 half x + 2.

 19.

Graph of the equation y = 4 thirds x − 5.
21.

Graph of the equation y = − 2 fifths x + 1.

 23.

Graph of the equation y = − 3 halves x + 2.
25.

Graph of the equation x + y = 6.

 27.

Graph of the equation x + y = −3.
29.

Graph of the equation x − y = 2.

 31.

Graph of the equation x − y = −1.
33.

Graph of the equation 3x + y = 7.

 35.

Graph of the equation 2x + y = −3.
 

37.

Graph of the equation 1 third x + y = 2.

 39. *ANSWER GRAPH LOOKS OFF; ie. graph should have m=2/5, not (-2/5).
41.

Graph of the equation 2x + 3y = 12.

 43.

Graph of the equation 3x − 4y = 12.
45.

Graph of the equation x − 6y = 3.

 47.

Graph of the equation 3x + y = 2.
49.

Graph of the equation x = 4. The resulting line is vertical.

 51.

Graph of the equation x = −2. The resulting line is vertical.
53.

Graph of the line y = 3. The resulting line is horizontal.

 55.

Graph of the line y = −5. The resulting line is horizontal.
57.

Graph of the equation x = 7 thirds. The resulting line is vertical.

 59.

Graph of the equation y = − 15 fourths. The resulting line is horizontal.
61.

The equations y= 2x and y = 2 are graphed. The equation y = 2x is a slanted line while y = 2 is horizontal.

 63.

The equations y = − 1 half x and y = − 1 half are graphed. The equation y = − 1 half x is a slanted line while y = − 1 half is horizontal.
65.

Graph of the equation y = 4x.

 67.

Graph of the equation y = − 1 half x + 3.
69.

Graph of the equation y = − x.

 71.

graph of the equation x − y = 3.
73.

Graph of the equation 4x + y = 2.

 75.

Graph of the equation y = −1.
77.

Graph of the equation 2x + 6y = 12.

 79.

Graph of the equation x = 3.
81. $722, $850, $978
Graph of the equation y = 594 + 0.32x.		 83. Answers will vary.

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