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2007-12-18 13:49:45 · 7 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
First get the lines in slope-intercept form (y = mx + b). To be parallel, they MUST have the same slope and NOT the same y-intercepts.
7y = -3x - 7
7y = 1 - 3x
5y - 2x = -1
y = -3/7x - 1
y = -3/7x + 1
y = 2/5x - 1/5
So the answer is c) I and II because they both have -3/7 as their slope.
Hope this helps!
2007-12-18 13:53:52 · answer #1 · answered by Viv 3 · 0⤊ 0⤋
obtain the slope for each equation
in order to be parallel, they need to have the same slope, which happens to be the case with c with both equations having the slope if -3/7
slope gives the direction of which way the line should be pointing towards
2007-12-18 21:55:04 · answer #2 · answered by Anonymous · 0⤊ 0⤋
I and II because they have the same slope -3x/7
2007-12-18 21:53:51 · answer #3 · answered by Ronnoc 3 · 0⤊ 0⤋
I and II because the slopes are the same =]
2007-12-18 21:58:12 · answer #4 · answered by Kelsie ☮ 6 · 0⤊ 0⤋
I and II
2007-12-18 21:52:56 · answer #5 · answered by golffan137 3 · 0⤊ 0⤋
I and II, I agree.
2007-12-18 21:54:18 · answer #6 · answered by Annie G 1 · 0⤊ 0⤋
c. I and II
2007-12-18 21:53:31 · answer #7 · answered by Philo 7 · 0⤊ 0⤋