ada yang bisa??
garis g melalui titik (3,1), memotong sumbu x positif di A dan sumbu y positif di B. Jika luas ΔAOB=8 dan AB ≤ 6, maka persamaan garis g dapat ditulis dalam bentuk..
![(A) det \left[\begin{array}{ccc}-x&4\\1&y\\\end{array}\right] = 0 (B) det \left[\begin{array}{ccc}x&4\\1&y\\\end{array}\right] = 0 (C) det \left[\begin{array}{ccc}-x+y&1\\4&1\\\end{array}\right] = 0 (D) det \left[\begin{array}{ccc}x-y&2\\-2&1\\\end{array}\right] = 0 (E) det \left[\begin{array}{ccc}x+y&2\\2&1\\\end{array}\right] = 0](https://tex.z-dn.net/?f=%28A%29+det+%5Cleft%5B%5Cbegin%7Barray%7D%7Bccc%7D-x%264%5C%5C1%26y%5C%5C%5Cend%7Barray%7D%5Cright%5D+%3D+0+%28B%29+det+%5Cleft%5B%5Cbegin%7Barray%7D%7Bccc%7Dx%264%5C%5C1%26y%5C%5C%5Cend%7Barray%7D%5Cright%5D+%3D+0+%28C%29+det+%5Cleft%5B%5Cbegin%7Barray%7D%7Bccc%7D-x%2By%261%5C%5C4%261%5C%5C%5Cend%7Barray%7D%5Cright%5D+%3D+0+%28D%29+det+%5Cleft%5B%5Cbegin%7Barray%7D%7Bccc%7Dx-y%262%5C%5C-2%261%5C%5C%5Cend%7Barray%7D%5Cright%5D+%3D+0+%28E%29+det+%5Cleft%5B%5Cbegin%7Barray%7D%7Bccc%7Dx%2By%262%5C%5C2%261%5C%5C%5Cend%7Barray%7D%5Cright%5D+%3D+0 "(A) det \left[\begin{array}{ccc}-x&4\\1&y\\\end{array}\right] = 0 (B) det \left[\begin{array}{ccc}x&4\\1&y\\\end{array}\right] = 0 (C) det \left[\begin{array}{ccc}-x+y&1\\4&1\\\end{array}\right] = 0 (D) det \left[\begin{array}{ccc}x-y&2\\-2&1\\\end{array}\right] = 0 (E) det \left[\begin{array}{ccc}x+y&2\\2&1\\\end{array}\right] = 0")
garis g melalui titik (3,1), memotong sumbu x positif di A dan sumbu y positif di B. Jika luas ΔAOB=8 dan AB ≤ 6, maka persamaan garis g dapat ditulis dalam bentuk..
udah jelas klo OA = OB = 4
A(4,0)
B(0,4)
panjang AB =
persamaan garisnya pake rumus
nanti dapat
yg cocok (E)