Question

The equation of line LM is y = 5x + 4. Write an equation of a line perpendicular to line LM in slope-intercept form that contains point (-3, 2)

Answer 1

A) y = 5x + 13
B)\[y=\frac{ -1 }{ 5 }x+\frac{ 7 }{ 5 }\]
C)\[y=-\frac{ 1 }{ 5 }x -\frac{ 7 }{ 5 }\]
D)y = 5x - 17

Answer 2

@iGreen.

Answer 3

@iGreen. MY SAVIOuR HELP ME

Answer 4

Perpendicular means it has opposite slope.

The slope here is 5, so what's the opposite of that?

Answer 5

-5 qq

Answer 6

\(5 \rightarrow\dfrac{5}{1}\)

5 is the same thing as 5/1, so flip 5/1 and make it negative.

Answer 7

No, -5 is incorrect.

Answer 8

Oh right, right

Answer 9

So would the answer be c

Answer 10

Hold on a minute.

Answer 11

The slope is correct, it should be \(-\dfrac{1}{5}\)

Answer 12

Actually, no C is incorrect.

Answer 13

Hmmmmm.... let me redo dis

Answer 14

A is the slope of the perpendicular line its \[-\frac{ 1 }{ 5 }\]

Answer 15

Yes, we should plug it in point-slope form.

\(y - y_1 = m(x - x_1)\)

Where \(y_1\) is the y-value of the point, \(x_1\) is the x-value of the point, and \(m\) is the slope.

So we have:

\(y - 2 = -\dfrac{1}{5}(x - (-3))\)

or

\(y - 2 = -\dfrac{1}{5}(x + 3)\)

Distribute -1/5 into the parnethesis:

\(y - 2 = -\dfrac{1}{5}x - \dfrac{3}{5}\)

Now add 2 to both sides, what's -3/5 + 2?

Answer 16

Ermmmm.... 7/5<----answer... i think

Answer 17

Nvm, yes, 7/5 so we have:

\(y = -\dfrac{1}{5}x + \dfrac{7}{5}\)

Answer 18

Oh I thought the 3 was only negative heh my mistake

Answer 19

Lol, that's my mistake :P

Answer 20

Good work

Answer 21

YAy C:

Answer 22

Gg

Answer 23

Thanks man!

Answer 24

So would the answer be B right just for clarification

Answer 25

Yep, you got it.

Answer 26

Alright