What is the slope intercept form of the line passing through #(-1,9) # with a slope of #-1/2 #?

Question

2207 views around the world

You can reuse this answer
Creative Commons License

Answer 1 · 2015-12-25T09:09:12

y= -1/2x + 17/2

( x 1 , y 1) #-=# (-1,9) ; m= -#1/2#

By slope-point form
( y - y 1) = m ( x - x 1 )

( y - 9) = -#1/2# ( x - (-1) )

( y -9) = -#1/2# ( x +1)

( y -9) = #-x/2# -#1/2#

y -9 = #(-x-1)/2#

2 y -18 = - x -1

2 y = - x -1 +18

2 y = -x +17

y = -#1/2# x + #17/2#