Question

8.) The line passing through (0, 4) and (-1, 3) is
parallel to the line passing through (2, 3) and
(a,0). Find a.

9. The line passing through (0,7) and (-2, 1) is
perpendicular to the line passing through (a, 4)
and (-2,5). Find a.

10. Find the value of 'p' if the slope of the line passing
through the points (-2,5) and (p, 2p + 1) is 1.​

Answer 1

Answer:

8. a= -1

Step-by-step explanation:

8.

slope of first line =(y2-y1)/(x2-x1)= (3-4)/(-1-0)=1

parrallel lines have same slope

slope of line 1= slope of line 2

1 = (0-3)/(a-2)

solving above equation we get a = -1