Question

Help anyone?
determine a function f(x) = mx+b
for the graph whose line is parallel to x - y = 12 and passes through the point (5,-1)

Answer 1

y = -x-12
slope, m = -1
y - y1 = m ( x - x1)
y - (-1) = -1(x-5)
y + 2 = -1x + 5
y = -1x + 3

Answer 2

oops, y - (-1) = 1
y = -1x + 4

Answer 3

Haiz your first part i believe is wrong

x-y=12
x=y+12
x-12 = y

Answer 4

m=1 ... parallel lines have same slope

(x1,y1)=(5,-1)

y-y1=m(x-x1)

y+1=1(x-5)
y+1=x-5
y=x-4

Answer 5

y=x-6

Answer 6

oh hah ok

Answer 7

your line is y=x-6 , my bad

check (5,-1)

-1=5-6=-1 check

Answer 8

they need an edit button

Answer 9

i see how its done. thanks a lot!

Answer 10

the error is easy to see

y+1=x-5

y=x-6