Solve for k
k\leq 4
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16-4k\geq 0
Calculate 4 to the power of 2 and get 16.
-4k\geq -16
Subtract 16 from both sides. Anything subtracted from zero gives its negation.
k\leq \frac{-16}{-4}
Divide both sides by -4. Since -4 is negative, the inequality direction is changed.
k\leq 4
Divide -16 by -4 to get 4.
Examples
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Limits
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