Practice problem
A quadratic P(x)=ax2+bx+cP(x) = ax^2+bx+cP(x)=ax2+bx+c has roots at x=5x = 5x=5 and x=11x = 11x=11. What is the xxx-coordinate of the vertex of PPP?
−8-8−8
888
−9-9−9
999
Not enough information is given.
Type a concept, like “slope” or “photosynthesis”.
