Question 398213
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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.  
y = x-10  |slope m = 1  and y=intercept is Pt(0,-10)
Note: m = 1/1,  y increases/decreases equally as x increases/decreases in value
{{{drawing(300,300, -15,15,-15,15, grid(1),
circle(0, -10,0.4),
graph( 300, 300, -15,15,-15,15,0,x-10))}}}