Asked by Christina
I am solving inequalities then graphing my solution. in a problem such as
-2(c-1)<-22
how do i solve this? and also how do i know the greater then less then sign is going the right way?
-2(c-1)<-22
how do i solve this? and also how do i know the greater then less then sign is going the right way?
Answers
Answered by
Damon
-2(c-1)<-22
first divide both sides by negative 2 !! BUT !! remember that when you multiply (or divide) both sides of an inequality by a negative number you reverse the direction of the arrow.
so
c-1 > 11
c > 12
check
try c = 13
-2(12) < -22 ?
-24 < -22 right, good
first divide both sides by negative 2 !! BUT !! remember that when you multiply (or divide) both sides of an inequality by a negative number you reverse the direction of the arrow.
so
c-1 > 11
c > 12
check
try c = 13
-2(12) < -22 ?
-24 < -22 right, good
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