Question 394758
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Hi
Using the point-slope formula, {{{m =(y[2] - y[1])/(x[2] - x[1])}}} to find slope
(–1, 3) and 
(2, –5)   m = 3  -(-5) /-1-2 = 8/-3  Slope m = -(8/3)
the standard slope-intercept form for an equation of a lineis: y = mx + b  
where m is the slope and b the y-intercept.  
y = -(8/3)x + b    | using ordered pair Pt(-1,3) to solve for b
3 = 8/3 + b
1/3 = b
y = -(8/3)x + 1/3
Note: as y increases/decreases by 8, x value changes by 3 in the opposite direction
{{{drawing(300,300, -6, 6, -6, 6, grid(1),
circle(-1, 3,0.3),
circle(2, -5,0.3),
circle(0, 1/3,0.3),
graph( 300, 300, -6, 6, -6, 6,0,-(8/3)x + 1/3))}}}