@Mollyhatesmath
you can multiply your matrix by the following matrix
im not sure on this sorry
$$\Large \begin{bmatrix} 0&-1\\ -1& 0 \\ \end{bmatrix} \cdot \begin{bmatrix} 1 &3 & -2 \\ 1&9&5\\ \end{bmatrix} $$
So after the multiplication that would be the answer @perl?
$$\Large \begin{bmatrix} 0&-1\\ -1& 0 \\ \end{bmatrix} \cdot \begin{bmatrix} 1 &3 & -2 \\ 1&9&5\\ \end{bmatrix} =\begin{bmatrix} -1 &-9 & -5 \\ -1&-3&2\\ \end{bmatrix} $$
:)
Okay, how about this one
here they want you to subtract x and y coordinates
<12,8> -<4,2> = < 12 - 4, 8 - 2>
So then its (8,6)?
correct :)
Yay! How about this one?
I think we did that one in the last post
Sorry, i meant to post #10. Do you just add each one?
@Mollyhatesmath
@Mollyhatesmath
did you just change your profile pic? Though you were a xmas tree
:)
Yes, lol. Had it like that since Christmas and forgot to change it :)
Move all terms containing variables to the left 6x+7y-10=0 -x+2-y=0 Move all terms not containing variables to the right 6x+7y=10 -x+2-y=0 6x+7y=10 -x-y=-2 write in matrix form
|dw:1431834737331:dw|
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