Use the quadratic formula to solve the problem.

A soccer player throws the ball onto the field from the sideline. An equation modeling the ball's flight is h = -16t2 + 18t + 2. In how many seconds will the ball reach the ground?
A. in about 2 seconds
B. in about 1.2 seconds
C. in about 1.8 seconds
D. Cannot be determined
Use the quadratic formula to solve the problem.

A soccer player throws the ball onto the field from the sideline. An equation modeling the ball's flight is h = -16t2 + 18t + 2. In how many seconds will the ball reach the ground?
A. in about 2 seconds
B. in about 1.2 seconds
C. in about 1.8 seconds
D. Cannot be determined
@Mathematics

Question

Use the quadratic formula to solve the problem.

A soccer player throws the ball onto the field from the sideline. An equation modeling the ball's flight is h = -16t2 + 18t + 2. In how many seconds will the ball reach the ground?
	A.	in about 2 seconds
	B.	in about 1.2 seconds
	C.	in about 1.8 seconds
	D.	Cannot be determined
 Use the quadratic formula to solve the problem.

A soccer player throws the ball onto the field from the sideline. An equation modeling the ball's flight is h = -16t2 + 18t + 2. In how many seconds will the ball reach the ground?
	A.	in about 2 seconds
	B.	in about 1.2 seconds
	C.	in about 1.8 seconds
	D.	Cannot be determined
 @Mathematics

alfie · Answer

Hitting the ground means that your height is 0. So you have to solve
-16t^2 +18t + 2 = 0.

You'll get two values, one is negative, but time can't be negative, so the other one is correct.

B is the correct answer.