Question

please help,

which line is perpendicular to the line with the equation 2x+5y=20
A) y=--x
B) y=--x+b
C) y=-x+8
D) y=-x-29

Answer 1

perpendicular to a line means that the slope is going to be negative inverse
so if you were given a line with a slope of 2/3, then the line perpendicular to it would be -3/2. another example is if the line given has a slope of -5/3, then the line perpendicular to it would have 3/5 slope

Answer 2

and why are you putting minus minus?

Answer 3

A) y=--x <--- are you sure that it is --
B) y=--x+b same with this one
C) y=-x+8
D) y=-x-29

Answer 4

yeah thats what it looks like on the paper, its a strait line

Answer 5

that is some typographical error. ask your teacher about it.

Answer 6

shes not texting me back....

Answer 7

well it is sunday, what do you expect?

Answer 8

ok so back to the question, so i understand that i would flip and add it but which one would i flip

Answer 9

ment thay i would flip it like u said,,, ignore the add it part

Answer 10

what do you mean which one? the slope is what you obtain the reciprocal of, then make sure that it is negative of that slope
\[\frac{ m }{ n }\rightarrow -\frac{ n }{ n }\]
if your slope was originally negative, then the perpendicular line to it will be positive\[-\frac{ m }{ n } \rightarrow -\left(- \frac{ n }{ m } \right)=+\frac{ n }{ m }\]

Answer 11

the answer is not in the choices you were given

Answer 12

ok thank u

Answer 13

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