Co-ordinate geom

this is prolly e.

given: point on coordinate graph where lines a and b intersect. (16/5,12/5)
need: slope or m of line b

y=mx+b
16/5=m(12/5)+b

statement 1)

tells me angles formed are right angles but no m. insufficient

statement 2)

tells me line a passes through origin. I could get slope of line a with this info, but not line b.

combined.

still nothing. i don't have y-intercept for line b.

E

plz confirm.

Shah,
No, you need to take a closer look.

IMO C

Stmnt 1: tells us that the product of the slopes is -1
Stmnt 2: we can determine slope of line A

Both together will be sufficient

OA is C.