Question 432046
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Hi
Graph the line passing through ((4,2) with slope -4/5
 y = (-4/5)x + b
 2 = (-4/5)*4 + b
 26/5 = b
 y = (-4/5)x + 26/5  y-intercept is Pt (0,5.2)

Note: as y increases/decreases by 4, 
x increases/decreases by 5 in an "opposite fashion"
{{{drawing(300,300,  -10, 10, -10, 10,    grid(1),
circle(4, 2,0.3),
graph( 300, 300, -10, 10, -10, 10,  0,(-4/5)x + 5.2))}}}