Question

Find the values of r for which the line (r+5)x–(r–1)y+r^2+4r−5=0 is
a)parallel to the x-axis
b)parallel to the line 2x−y+4=0,
c)parallel to the y-axis
d)perpendicular to the line x−y+32=0

Answer 1

Answer:

parallel to the line 2x−y+4= 02x−y+4=0, 3.parallel to the yy-axis 4. perpendicular to the line x−y+32=0x−y+32= ...