How many real solutions does the equation 4k^{2}+5k+4=-3k have?
1 point
1
Question 2
2.
The graph of y=ax^{2}+bx+c is shown below. Which of the following statements must be true? Select all that apply.
1 point
1
Question 3
3.
Use the quadratic formula to solve the equation.
2x^{2}-3x-5=0
1 point
1
Question 4
4.
What is the solution set of the equation 9y^{2}-11=6y?
2 points
2
Question 5
5.
A basketball player take a shot at a three-pointer and sends the ball on a parabolic path. It is 8.5 ft high when it leaves the player's hands. After reaching its maximum height somewhere in between the player and the basket, it's downward arc is genlty interrupted when it swooshes perfectly through the hoop, 10 feet above the floor.
If the hight of the ball t seconds after the ball leaves the player's hands is modeled by the equation h(t)=-5t^{2}+12t+8.5, how many seconds does it take for the ball to reach the basket? Round your answer to the nearest tenth of a second.