Coordinates

If the graph of y=kx^2+6x-3 has no y-intercepts, find the range of possibe vales
of k.

{3x-y+3=0
x+2y+8=0


{4x-3y-4=0
y^2=4x


Consider the two straight line L1:3x-ky+24=0 and L2:(3k-4)x+3y+3=0.If L1 ⊥L2
pripenticular, find (a)the value of k,(b)thecoordinates f their intersection.