what is the slope of a line that is perpendicular to the graph of:y=-1 divided by 2x+4?

0 ⤊

what is the slope of a line that is perpendicular to the graph of:y=-1 divided by 2x+4?

2007-07-26 16:55:35 · 3 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics

3 answers

If it is
y = (-1/2)x + 4
all lines perpendicular will have a slope of 2

If it is
y = - 1 / (2x + 4)
the slope at any value of x but - 2 is
2/(2x + 4)^2
and the perpendicular at any value of x but - 2 will have the slope
- (1/2)(2x + 4)^2

2007-07-26 18:17:00 · answer #1 · answered by Helmut 7 · 0⤊ 0⤋

The slope of that line is -1/2 (btw, the y-intercept is -1/4). The slope of the line perpendicular is the negative reciprocal of -1/2, which is positive 2.

2007-07-27 00:01:20 · answer #2 · answered by carrie1740 2 · 0⤊ 0⤋

slope be m1 and m2.
if two lines are perpendicular , m1*m2=-1
m1=dy/dx=2/(2x+4)^2
m2= - (2x+4)^2/2

2007-07-27 01:24:23 · answer #3 · answered by MathStudent 3 · 0⤊ 0⤋