Asked by trixie
Explain what happens when you try to solve this linear equation using an elimination strategy.
What does this tell you about the graphs of these equations?
-8x + 20y = -40
24x - 60y = 120
What does this tell you about the graphs of these equations?
-8x + 20y = -40
24x - 60y = 120
Answers
Answered by
Reiny
-8x + 20y = -40 ----> 2x - 5y = 10
24x - 60y = 120 ----- > 2x - 5y = 12
Ahhh, I see two parallel lines, thus no solution
24x - 60y = 120 ----- > 2x - 5y = 12
Ahhh, I see two parallel lines, thus no solution
Answered by
trixie
will it work if i write :
they have the same slope and are identical. Both have the slope of 2/5?
they have the same slope and are identical. Both have the slope of 2/5?
Answered by
Reiny
But they are not "identical" , their constants are different.
You have 2 different parallel lines
(think of railway tracks)
You have 2 different parallel lines
(think of railway tracks)
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