Question

What is the slope of the line 18x+3y= -162 ?
A) -54 B) 6 C)9 D) -6
Need help.

Answer 1

solve for y. Your slope will be "m" in the formula y = mx+b

Answer 2

I tried but it comes out incorrect.

Answer 3

hmm. y = -6x -54 is this what you got?

Answer 4

Eh no. I had a positive six the first time and then some other numbers.

Answer 5

well if you take 18x+3y = -162, you first subtract 18x from both sides, and then you'll divide both sides by 3, giving you my answer above. making the slope -6

Answer 6

18x-3y= -162
-18 -18 equals 3y= -180 and If I divide by 3 I get -60 ._.

Answer 7

no, it must be 18x there is a variable there you cannot combine 18x and the -162. x is a variable and 18 is multiplied by it, its just like saying 18*x

Answer 8

Okay. Can you show me step by step on how to find the slope though?

Answer 9

sure, one second

Answer 10

\[y = mx+b\] the value 'm' represents slope in this formula.
\[18x+3y = -162\] this is your problem, first you subtract 18x from both sides\[3y = -18x-162\]
now you divide both sides by 3 to isolate y and put the equation into the formula noted above.\[y = -6x - 54\]
as you can see if you say y = mx+b your 'm' value is -6.

Answer 11

do you understand? if you need clarification just ask.

Answer 12

I understand now. I didn't do the first step but now I got it. Thanks!

Answer 13

no problem!