Answers may vary. Sample: x+3y≤15
x plus 3 y less than or equal to 15
b. Answers may vary. Sample: domain: {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15}, range: {0, 1, 2, 3, 4, 5}
c. A graph of a solid line segment falls from (0, 5) to (15, 0). The region below the line is shaded. All values are approximate.
55. Answers may vary. Sample: y≤−|x|−1
y is less than or equal to -|x| - 1
b. Answers may vary. Sample: domain: all real numbers, range: y ≤ -1
c. A graph of a V-shaped line with the vertex at (0, -1). The line extends infinitely in both directions. The region below the line is shaded.