2007-01-06 20:16:35 · 12 answers · asked by Nicole S 1 in Science & Mathematics ➔ Mathematics
if the line is parallel to Y,the gradient
remains -1/3
i hope that this helps
2007-01-06 23:35:55 · answer #1 · answered by Anonymous · 0⤊ 0⤋
Any line with the same gradient will be parallel to the line y=-1/3 x - 1 - that is, any line with the equation y = -1/3 x +c (and NOT y = 3x +2). The gradient of course is -1/3.
The line y = 3x + 2 is at right angles to the line y = -1/3 x - 1 and in fact any line with the equation y = 3x + c is at right angles to the given line.
2007-01-07 04:27:41 · answer #2 · answered by Martin 5 · 0⤊ 0⤋
Parallel lines all have the same gradient. To find them, you just put a different intercept. If you need to find the gradient of a line that is perpendicular to the one you are given (which you will have to do in the future), then the gradient will be the negative reciprocal of the one you have. This means you have to flip it over and make it a negative. EG: -1/3 would become 3/1 or just 3. That should help you when you come to the next set of work.
2007-01-07 05:07:34 · answer #3 · answered by suicune1000 2 · 0⤊ 0⤋
The gradient of a parallel line is ' -1/3'.
2007-01-10 16:57:50 · answer #4 · answered by lenpol7 7 · 0⤊ 0⤋
The equation of a straight line graph is of the form y=mx + c
The number where the letter m stands, called the co-efficient of x, tells you the gradient. In this case, - 1/3
A line which is parallel has the same gradient, so the answer is still -1/3
2007-01-07 06:24:39 · answer #5 · answered by michael26260 2 · 1⤊ 0⤋
wouldn't it be any that had the same gradient (-1/3) just had a different y intercept (-1)
so you could have something like y = -1/3x + 7
if something is parallel to it then the gradients multiply to be -1
so a line parallel to y = -1/3x - 1 would be y = 3x + 2
2007-01-07 04:20:15 · answer #6 · answered by rach 3 · 0⤊ 1⤋
Any line || to the given line is -1/3
2007-01-07 04:58:46 · answer #7 · answered by Rekha T 1 · 0⤊ 0⤋
-1/3
2007-01-07 04:25:14 · answer #8 · answered by Sony 1 · 1⤊ 0⤋
Gradient = Vertical/Horizontal
Verical = change in the y-axis
Horizontal = change in the x-axis
e.g. Co-oridanates (8,50)
Gradient = 40/7 = 5.7
2007-01-07 13:35:38 · answer #9 · answered by SHIBZ 2 · 0⤊ 0⤋
gradient is usually denoted by letter m.
In this case m = -1/3
2007-01-07 05:45:27 · answer #10 · answered by Como 7 · 0⤊ 0⤋