1-4k >= -11 and -1+4k >=-11
-4k >= -12 _and ___4k>=-10
4 k <= 12 __and_____k>=-2.5
k <= 3
note
arrow
reverse
when
signs
changed
so in the end between -3and +3
-2.5 <= k <= 3
|1-4k| ≥ -11
Solve
2 answers
This is a trick question.
|u| is always positive, so
|1-4k| ≥ -11
for any value of k.
Damon's solution is correct, but it should read
k >= -2.5 OR k <= 3
So, any value of k will work.
|u| is always positive, so
|1-4k| ≥ -11
for any value of k.
Damon's solution is correct, but it should read
k >= -2.5 OR k <= 3
So, any value of k will work.