In the equations h = -3t^2 + 20t + 2 where t is the amount of time in seconds, and h represents the height of the ball. The parabola that represents this equation opens _______.
What is down.
100
x^2 - 16
What is (x+4) (x-4)?
100
How many solutions (and what type) are there to the quadratic equation y = x^2 + 5x + 8.
What is 2 imaginary.
100
If x^2 +6x + c is a perfect square trinomial, what is the c value?
What is 9?
100
Solve x^2 + 4 = 29
What is x = 5 and x = -5?
200
In the equations h = -5t^2 + 20t + 1 where t is the amount of time in seconds, and h represents the height of the ball in feet. What is the maximum height of the ball?
What is 21 feet?
200
Factor: (36x^2 - 49)
What is (6x - 7) (6x +7)?
200
Solve: x^2 -5x + 8 = 4
What is x = 1 and x = 4?
200
If x^2 -10x + c is a perfect square trinomial, what is the c value?
What is 25?
200
x^2 - 6 = 30
What is x = 6 and x = -6?
300
In the equations h = -5t^2 + 20t + 1 where t is the amount of time in seconds, and h represents the height of the ball in feet. How long until it reaches it's maximum height?
What is 2 seconds?
300
Factor: 25x^2 - 9
What is (5x+3) (5x -3)?
300
Solve: x^2 -9x + 5 = 15
What is x =10 and x = -1?
300
If x^2 - 12x + c is a perfect square trinomial, what is the c value? And the factors