will someone check this?
If y varies directly as x, and y = -18 as x = -2, find y for the x-value of 20.
MY ANSWER::::
-2/-18=-20/x

-2x=-360

-360/-2

x=180

Question

will someone check this?
If y varies directly as x, and y = -18 as x = -2, find y for the x-value of 20.
MY ANSWER::::
-2/-18=-20/x

-2x=-360

-360/-2

x=180

welshfella · Answer

your second line is incorrect  what is -18 *-20 ?

board_man · Answer

oh shoot. I typed in positive 20 to my calc XD

welshfella · Answer

OH hold on - its the first line It is 20 not -20.

welshfella · Answer

you got the right answer  by making another mistake in line 2

- so the 2 errors cancelled each other out!  lol!

welshfella · Answer

that was a lucky solution!

board_man · Answer

so the answer is actually +180? and do you know anything about transformations? I only have 3 questions left and that's what they relate to.

welshfella · Answer

i probably  have time for just one...

board_man · Answer

okay. Thanks for your help though!

welshfella · Answer

180 is correct answer.

welshfella · Answer

yw

board_man · Answer

awesome :)