SOLUTION: Find the slope-intercept form of the equation of the line that passes through the given point and has the indicated slope: (1, 2), m = -1

 

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: passing thru  Pt(1, 2), with slope m = -1 

 y = -x + b

 2 = -1·1 + b   |Using ordered pair (x,y):(1,2)  to solve for b

 3 = b

 y = -x + b