Question

What is the standard form equation of the line passing through (1, –5) with a slope of –1

Answer 1

y = mx + b

y = -1x + b ... plug in m = -1

-5 = (-1)(1) + b ... plug in x = 1 and y = -5

-5 = -1 + b

Now solve for b. Tell me what you get.

Answer 2

4?? I'm no good in this
:/

Answer 3

close

Answer 4

y = mx + b

y = -1x + b ... plug in m = -1

-5 = (-1)(1) + b ... plug in x = 1 and y = -5

-5 = -1 + b

-5+1 = -1 + b +1

-4 = b

b = -4

Answer 5

keep in mind that -5 + 1 = -4 and not 4

Answer 6

so you were close

Answer 7

okay I just redid it and got that thank you do much!

Answer 8

ok, so we go from

y = mx+b

to

y = -x-4

Answer 9

To get into standard form, we just move that x term to the left side

Answer 10

y = -x-4

y+x = -x-4+x

x+y = -4

Answer 11

So the answer is x+y = -4

Answer 12

thnx so very much for your help!

Answer 13

you're welcome