Question
your friend tosses a ball into the air at an initial velocity of 18 feet per second.The equation h=-8t^2+18t+5 models the height h of the ball t seconds after it was thrown.
When did the ball reach its highest point?
When did the ball reach its highest point?
Answers
Steve
recall that the vertex of ax^2+bx+c is at x = -b/2a
alex
thank u