Posted: 9/14/2006 10:30:12 PM EDT
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Given a system of the form ¡m1x + y = b1 ¡m2x + y = b2 where m1, m2, b1, and b2 are constants: (a) Show that the system will have a unique solution if m1 6= m2. (b) If m1 = m2, show that the system will be consistent only if b1 = b2. (c) Give a geometric interpretation to parts (a) and (b). How do i start this? |
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Re-type or make a jpg - is that really supposed to be an i (square root of negative one) or what? IIRC the usage would be following a constant, but preceeding a variable. Guessing that you are in the beginning of the book at this point in September...this looks like a fairly ordinary set of two equations, and fortunately there are two unknowns. So if 
In a similar fashion, substitute m1 for m2 (they are equal) and see what you get. Finally, you can graph a line by re-arranging to the more familiar Y = mX + b. |