solve: x+y=6
y+z=2
x+z=4
then i put in matrix form on the graphing calc but i dont know how to fix the window range, the farthest i got was the Y= part on the calculator
2006-09-17 05:37:05 · 3 answers · asked by Exclusive [♥] 6 in Science & Mathematics ➔ Mathematics
No graphing is required to solve this problem...
x+y+0z=6
0x+y+z=2
x+0y+z=4
| 1 1 0 | | x | .. | 6 |
| 0 1 1 | | y | = | 2 |
| 1 0 1 | | z | .. | 4 |
A * X = B
Input 3x3 Matrix above by editing matrix A
Input 3x1 Matrix above by editing matrix B
X = A¯¹ * B
perform A¯¹ * B on your calculator
| 4 | .. | x |
| 2 | = | y |
| 0 | .. | z |
x=4 ; y=2 ; z=0
2006-09-17 05:49:54 · answer #1 · answered by Andy S 6 · 0⤊ 0⤋
Did you try going to "zoom fit" on your calculator? I'm pretty sure you press 2nd trace and then 0 and this will tell the calculator to give the best window range for the equations you put in the "y=" form.
2006-09-17 12:44:34 · answer #2 · answered by Groovtron 2 · 0⤊ 0⤋
y+z=2
z=2-y
z=4-x
substitute and youll get the answer
z=-2
y=4
x=6
2006-09-17 12:39:21 · answer #3 · answered by Sai♥Pranav 3 · 0⤊ 0⤋