Hi,

Using the point-slope formula,  to determine the slope



Points (-2, -3) and (2, -5)

 m = -5 - (-3)  / 2 - (-2) = -2/4 = -(1/2)

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

where m is the slope and b the y-intercept  m = -(1/2)

y = -(1/2)x + b   Using ordered pair pt(2,-5) to solve for b

-5 = -1 = b

-4 = b

y = -(1/2)x -4              pt(0,-4) the y intercept



 

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