Question

help

Answer 1

@jim_thompson5910

Answer 2

What is the slope of the given line?

Answer 3

Sorry, huh?

Answer 4

The given line, can you tell me what the slope is of it

Answer 5

What is the slope of y + 2 = 1/3(x - 5)

Answer 6

one sec let me see

Answer 7

If you're not sure, the slope of

y - y1 = m(x - x1)

is m

Answer 8

Another alternative: The slope of \(y = mx + b\) is \(m\).

Answer 9

so would it be 1/3?

Answer 10

In the slope-intercept form: y = mx + b you should know the slope of the line is the coefficient m of the x term, right?

Answer 11

yep, the slope is 1/3

The slope of ANY perpendicular line is -3/1 (flip the fraction and flip the sign)

Answer 12

-3/1 reduces to -3, so that means that the answer is either choice A or B

this is because choice A and B have slopes of -3

Answer 13

Where flip the fraction means find the reciprocal and flip the sign means use the opposite sign.

Answer 14

yes! I remembered that!! Alright how do we know between a and b though?

Answer 15

Now use this to find the value of b in y = mx+b

y = mx+b

y = -3x + b .. plug in m = -3 (the perpendicular slope)

3 = -3(-4) + b ... plug in x = -4 and y = 3

3 = 12 + b

Keep going to solve for b

Answer 16

b = 4?

Answer 17

3 = 12 + b

3 - 12 = 12 + b - 12

-9 = b

b = -9

Answer 18

not sure how you got b = 4

Answer 19

y = mx+b

y = -3x + b .. plug in m = -3

y = -3x - 9 ... plug in b = -9

So that's your perpendicular equation

Answer 20

woah! haha I have no idea either...is it b?

Answer 21

yeah, that's what I got too. thanks!

Answer 22

ok great, just a silly math error then I guess