Y=f(x) is odd (f(-x)=-f(x)) and f(x> 0) = x^2-5x-12, x is not = to 0. what points does the line f(x)=12 go through.

Afootball quarterback has two more chances to throw a touchdown before his team is forced to punt the ball. he misses the receiver on the first throw 25% of the time. when his first throw is incomplete, he misses the receiver on the second throw 15% of the time. what is the probability of not throwing the ball to a receiver on either throw?