Question 35653
If the x-intercept is -4, then it passes through (-4,0) as well as (2,6).  So find the slope of the line through these two points.  Remember that slope is
 {{{m= (Rise)/(Run) = (6-0)/(2-(-4))=6/6=1}}}


Now find the slope from (2,6) to (p,10)
{{{m = (10-6)/(p-2)= 4/(p-2)}}}, which also must equal to 1 from the other slope you found.


{{{4/(p-2) = 1}}}


Multiply both sides by (p-2):
{{{(p-2)*(4/(p-2)) = (p-2)*1}}}
{{{4 = p-2}}}


Add +2 to each side:
{{{p=6}}}


R^2 at SCC