Question

Solve.

-r/4 < 8

A.
r ≤ –32

B.
r ≥ –32

C.
r ≤ –2

D.
r ≥ –2

Answer 1

Hi

Answer 2

Sup XD

Answer 3

Do you know that the sign will flip when you multiply by a negative number on both sides?

Answer 4

No?

Answer 5

Ok, so you should remember that.

Answer 6

For example

-x > 3

When you multiply -1 on both sides the sign will flip. That means it will go from > to <

So

-x * -1 > -3 * -1

x < 3

That's just an example :P

Answer 7

So we need to multiply both sides by -4, and don't forget to flip the sign. Think you can do that? :)

Answer 8

Yeah :)

Answer 9

The Mathematica program's answer is not listed in A. through D.
\[\text{Reduce}\left[-\frac{r}{4}<8\right]=r>-32 \]

Answer 10

Woah. O_O Thats confusing.

Answer 11

The answer is r>−32

Answer 12

Thanks <3

Answer 13

Np

Answer 14

@JB1625

Direct answers are not allowed