Find the slope of a line that passes through the points (2,-3) and (-4,5).
a.-1/3
b. -3/4
c. -4/3
d. -4
2007-07-10 17:02:25 · 8 answers · asked by Audraaa. =) 1 in Science & Mathematics ➔ Mathematics
slope of a line is given by the formula m = y2 - y1 / x2 - x1
since your two points are (2,-3) and (-4,5)
y2 = -3
y1 =5
x2=2
x1=-4
putting these into the formula you get
m = -3 -5 / 2 -(-4)
= -8 / 2 + 4
= -8 / 6
= -4 / 3
so the answer is c. -4/3
2007-07-10 23:37:34 · answer #1 · answered by Anonymous · 0⤊ 0⤋
okay, the formula for finding the slope of two lines is
y1-y2/x1-x2 so if the points -4,5 is set one and 2, -3 is set two, you set it up as 5- -3 / -4-2 = the slope./ So the answer is 8/-6 or -8/6 which is reduced into -4/3
2007-07-10 17:04:58 · answer #2 · answered by fencingfanatic13 2 · 1⤊ 1⤋
slope (m) = difference in y/difference in x
so
5 - (-3)/ -4 - 2
8/-6
-4/3
2007-07-10 17:06:01 · answer #3 · answered by Anonymous · 1⤊ 0⤋
slope = y2-y1/x2-x1
It doesn't matter which point you call "l" and which point you call "2" as long as you don't mix them up.
If point "1" is 2, -3 then x1 = 2 and y1 = -3
If point "2" is -4, 5 then x2 = -4 and y2 = 5
Then slope = 5 - (-3)/ -4 - 2 = 8/-6 = -4/3
2007-07-10 17:09:14 · answer #4 · answered by The Old Professor 5 · 1⤊ 0⤋
Slope = (change in y) / (change in x)
Slope = (5- (-3)) / (-4-2) = 8/-6 = -4/3....(c) is your answer.
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2007-07-10 17:05:48 · answer #5 · answered by victoria 5 · 1⤊ 0⤋
-4/3
2007-07-10 17:14:33 · answer #6 · answered by Anonymous · 1⤊ 0⤋
slope=m=(5-(-3))/((-4)-2)
=8/-6
=-4/3
2007-07-10 17:11:34 · answer #7 · answered by iyiogrenci 6 · 1⤊ 0⤋
c
2007-07-10 17:06:35 · answer #8 · answered by blingbling22 1 · 0⤊ 0⤋