Question

What is the slope of the line that is perpendicular to the line whose equation is 2x + y = 4.

Answer 1

Do you have choices?

Answer 2

y = x - 4

y = x + 4

y = -x + 4

Answer 3

those are the answers

Answer 4

First we need to put the first equation into y=mx+b

Answer 5

To do this simply subtract 2x from one side and to the other. It should now look like
\[y=-2x+4\]

Answer 6

You only have three choices?

Answer 7

Okay well Im a little confused because if a line was perpendicular, it would be negative and switched. For Example:
\[\frac{ 3 }{ 2 }\] would be switched to \[-\frac{ 2 }{ 3 }\]

Answer 8

Which means the line perpendicular would be \[-\frac{ 1 }{ 2 }\]

Answer 9

Perpendicular lines have negative reciprocal slopes

Answer 10

Thanks stephen... Kinda already said that.

Answer 11

im so sorry the answer choices are
-2
-1/2
1/2
2

Answer 12

Now those seem likes slopes

Answer 13

Ok so it is there. The line perpendicular would be anything with the slope of -1/2

Answer 14

What is the equation of the line described below written in slope-intercept form?

the line passing through point (2, 2) and perpendicular to the line whose equation is y = x

Answer 15

Close this question and make a new one

Answer 16

I am not entirely sure that is correct, if it is y = -2x +4, the negative reciprocal slope would be 1/2

Answer 17

Oh shoot sorry yeah stephen is right.