ISmellGood

thank u!

thanks!

Because the absolute value of a number is really just the units it is away from the origin, or 0. Now lets simplify the equation.

lxl+3=5

lxl+3-3=5-3

lxl=-2 or +2.

-2 and 2 are the only two numbers that are 2 units away from 0, and so either of them could be the answer.

Simpler than I expected it to be! Thanks!

Alright, then he must have accidentally said it wrong. I thought so at first because radiuseseseses sounded very incorrect but then he said the same thing twice so I got very confused. Thanks!

Sorry that it wasn't clear enough, I had to translate the question as best as I could from Chinese and naturally I'm not a native speaker of English! What I meant by the unit value was the number before the decimal point. 

me too

I'm also studying for it. This site is great! I get loads of help

Nooo why would you do that

The answer for this is the last one because:

First, simplifying the linear equation, we get:

10y=9x-9

y=9/10x-9/10

We know that the linear equation form is y=mx+b, where m is the slope and b is the y-intercept.

The slope is 9/10 because it is in the same position as the "mx" in the slope formula. Therefore, m=9/10

Now, lets find the y intercept. We can always set the other coordinate as 0, and in this case, y=0x-9/10, or y=-9/10. The y intercept is -9/10.