SOLUTION: Solve using the mulitplication principle. Graph and write set builders notation and interval notation for each answer, -16x<-64

Question 331360: Solve using the mulitplication principle. Graph and write set builders notation and interval notation for each answer,
-16x<-64

Found 2 solutions by checkley77, solver91311:
Answer by checkley77(12844) (Show Source): You can put this solution on YOUR website!
-16x<-64
x>-64/-16 dividing by a negative value changes the sign.
x>4 ans.
Proof:
Let x=4.1
-16*+4.1<-64
-65.6<-64

Answer by solver91311(24713) (Show Source): You can put this solution on YOUR website!

Multiply both sides of the inequality by remembering to reverse the sense of the inequality because you multiplied by a negative number.

Graph: Construct a number line. Put a small circle on the 4. Draw a heavy line from the little circle toward the right putting a big arrowhead on the end to indicate that the heavy line goes on forever.

The red dot needs to be an open circle and the heavy arrow (not shown) must start at the open circle and go to the right.

Set builder:

Interval:

John

My calculator said it, I believe it, that settles it

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