How do you write an equation in point slope form of a line through point j(4,1) with slope -4?

2 Answers
Apr 1, 2015

y-1 = -4(x-4)

Apr 7, 2015
  • The Point-Slope form of the Equation of a Straight Line is:

# (y-k)=m*(x-h) #
#m# is the Slope of the Line

#(h,k)# are the co-ordinates of any point on that Line.

  • Here, we have been given the coordinates #(h,k)# of 1 point on that line as #(4,1)#
    And the Slope #m# is given as #-4#

Substituting the values of h, k and m in the Point-Slope form, we get

# (y-1)=(-4)*(x-4) #

The above will be the Equation of the Line in Point-Slope form .

The graph will look like this:

graph{y=-4x+17 [-12.66, 12.65, -6.33, 6.33]}