PDA

View Full Version : Can I get a jump start in solving this


dr_pooool
Sep1-03, 03:53 PM
Determine whether the following system is independent, inconsistent, or dependant.
3x – 4y = 8

0.75x – y = -2

HallsofIvy
Sep1-03, 04:18 PM
Are you saying that you do not know what "independent", "dependent", or "inconsistent" mean? I think you would be better served by looking up the definitions yourself in your text book.

There are a number of ways of determining whether or not a system of equations is "independent" or "consistent" but the simplest is to try to solve the equations and see what happens.

dr_pooool
Sep1-03, 05:15 PM
3x – 4y = 8
.75x - y = -2
so,
-4(0.75x – y) = (-2)-4
-3x + 4y = 8
0=16 This is inconsistent

HallsofIvy
Sep2-03, 08:15 AM
Yep, you've got it!!