Question

how do you do a compound inequality

Answer 1

it would probably help to have some specific examples but are you thinking something like this?

Answer 2

−9x+2>18 OR 13x+15≤−4

Answer 3

start with one at a time

−9x+2>18

isolate x algebraically, do you know how to do this?

Answer 4

-2 from both sides

Answer 5

good, so you would get

-9x > 16

then the next step is to divide both sides by -9

x < -16/9

when you multiply or divide by a negative number simply flip the direction of the inequality

Answer 6

then you would simply solve 13x+15≤−4 for x using the same logic

Answer 7

then what is the answer

Answer 8

please solve 13x+15≤−4 for x, I will help you if you get stuck.

Answer 9

is that will equal x < -19/13

Answer 10

*so*

Answer 11

almost, ≤ not < (notice the sign in the original inequality)

so after that just put the two solutions together

x < -16/9 or x<=-19/13

since the interval x < -16/9 is included w/in the interval x <= -19/13 it should just be x <= -19/13

Answer 12

lol thanks😀