3x+4y = 12 (-4,0), (2/3, 5/2), (0,3) (2/3,2)
2007-05-10 12:46:22 · 3 answers · asked by davidu69 1 in Science & Mathematics ➔ Mathematics
well fill in each and solve...
3(-4) + 4(0) =12
-12 + 0 =12
NO so (-4,0) is not right
3(2/3) + 4 (5/2) = 12
2+10=12
12=12
Yes for (2/3,5/2)
3(0) + 4(3)=12
0+12=12
Yes for (0,3)
3(2/3) + 4(2) = 12
2+8=12
10=12
No for (2/3,2)
2007-05-10 12:53:33 · answer #1 · answered by balgne 3 · 0⤊ 0⤋
The correct odered pairs are (2/3, 5/2) and (0,3).
Substitute the given ordered pairs and you'll find out that (2/3, 5/2) and (0,3) are the correct ones.
2007-05-10 19:51:57 · answer #2 · answered by michaelangelo 2 · 0⤊ 0⤋
3x + 4y = 12
Now test each value
----------------LHS-----RHS
(-4,0)------- -12------12 not equal
(2/3,5/2)------12------12 equal
(0,3),----------12------12 equal
(2/3,2)--------10------12 not equal
From above, solutions are (2/3,5/2) and (0,3)
2007-05-11 12:02:40 · answer #3 · answered by Como 7 · 0⤊ 0⤋