Question

PLEASE HELP FOR MEDAL AND FAN

Answer 1

this is confusing? sorry i really don't know...

Answer 2

i have no clue what to do

Answer 3

Do you understand absolute values?

Answer 4

@jaeuni noo:(

Answer 5

you notice how you have a "bar" on each side of the x-4?

Answer 6

yeah

Answer 7

When you have bars like that, you know that it takes the absolute value of whatever happens inside - whether the number inside becomes a negative or positive (after you plug in a value for x) you will always take the absolute value (positive) of that number. Think of an absolute value as the distance of some number on a number line, away from zero - disregarding it's direction (it will never be positive, since "distance w/o direction" can only be a positive number...get it?

Answer 8

kind of yeah...