Question 24981
y=3/4x-4 the slope is 3/4
the y-intercept is -4

y=-1/2x+6 slope is -1/2
y-intercept is 6 
the point of intersection or coordinates you got was (6,1).  I got (8,2). 

{{{graph (400,400, -10,10,-10,10, (3/4)x-4, (-1/2)x + 6)}}}


y=-2x+5 slope is -2/1
y-intercept is 5 
y=x-10 slope is 1
y-intercept is -10
point of intersection or coordinate you got was (7,-3).  I got (5,-5).
{{{graph (400,400, -10,10,-10,10, (-2x+5), x -10)}}}


Are your graphs coming out like this?  Your slopes and intercepts look right to me.  Are you graphing by hand or by calculator?  


R^2 at SCC