1: Solve and write the solution in interval notation:
2x - 4 < 4 or x + 5 ≤ 2 - 2x
(-∞, 3)
(-∞, 4)
(-∞, ∞)
(-1, 4)
2:
2x > -10 or x > 1
(-1, 5)
(-5, 1)
(-5, ∞)
(-∞, ∞)
3:
y < 3 or 3y + 4 > -5
(-∞, 3)
(-3, 3)
(-3, ∞)
(-∞, ∞)
4: Write the solution to the compound inequality in compact form, write the solution in interval notation, and describe the graph.
Write in compact form:
-5 < 3x + 4 < 19
3 < x < 23/3
-3 < x < 23/3
3 < x < 5
-3 < x < 5
5: Write the above solution in interval notation:
(3, 5)
(-∞, 5)
(-3, 5)
(-∞, ∞)
6: Describe the above graph.
the entire graph is shaded
open circle on 5, and shaded to the left
open circle on -3, and shaded to the right
open circle on -3, open circle on 5, and shaded in between
2006-12-13
02:05:55
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4 answers
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asked by
me1026
1
in
Mathematics