SOLUTION: Write the equation of a line in slope-intercept form that has a slope of -2 and passes through the point (2, -8).

Algebra ->  Linear-equations -> SOLUTION: Write the equation of a line in slope-intercept form that has a slope of -2 and passes through the point (2, -8).      Log On


   

Question 633810: Write the equation of a line in slope-intercept form that has a slope of -2 and passes through the point (2, -8).
Found 2 solutions by solver91311, ewatrrr:
Answer by solver91311(24713) About Me  (Show Source):
You can put this solution on YOUR website!


Use the point-slope form:



where are the coordinates of the given point and is the given slope.

Then rearrange so that it is in slope-intercept form:

John

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Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 

Hi,

Using the standard slope-intercept form for an equation of a line y = mx + b

  where m is the slope and b the y-intercept.

Line with m = -2 and passing through Pt(2,-8)

Line

 y = -2x + b

 8 = -2·2 + b   |Using ordered pair (x,y):(2,8)  to solve for b

12 = b

 y = -2x + 12