Which number line represents the solution set for the inequality –1/2x ≥ 4?
2 answers:
we have
Solve the inequality
Multiply by both sides-----> remember change inequality sign
the solution is the interval-----------> (-∞,-8]
using a graph tool
see the attached figure
the solution is the shaded area
-1/2x > = 4 ...multiply both sides by -2, change inequality sign
x < = 4 * -2
x < = -8
closed circle (because of the equal sign) on -8, shading to the left (because it is less then)
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