Algebra Quadratics Initial Velocity

What are the roots of the function?

• x = 4, -1

• (-4, 1)

• x = -4, 1

• (4, 0) (-1, 0)

The graph of a Quadratic Equation is called a(n)....

• Circle

• Elipse

• Parabola

• Line

What does it mean for the solutions to a quadratic equation to be 6 and 11?

• The y-intercept is 6 and the x-intercept is 11.

• The parabola is flipped upside-down.

• The parabola crosses the x-axis at 6 and 11.

• The parabola moved 6 units to the left and 11 units down from the origin.

Find the zeros of this quadratic.

• b=4/5, b=3

• b=4, b=-3

• b=1/5, b=3

• b=4/5, b=-3

The function f(t) = -5t²+20t + 60 models the approximate height of an object t seconds after it is launched. How high above the ground does the object start? 

Mathematical Equivalence

ON

An object in launched directly upward and the height of the object is represented by the equation s(t) = –16t² + 64t + 80. What is the initial velocity the object is launched at?

• 64 feet

• 80 feet

• 16 feet

• -16 feet

Which answer choice describes  y = -3x² +7x - 2 accurately?

• opens up with a maximum

• opens up with a minimum

• opens down with a maximum

• opens down with a minimum 

The height of a water balloon that is launched into the air is given by

h(t) = -5t² + 40t + 2.

From what height was the balloon released?

(Hint: the question is asking about the starting height, which means when the time starts at 0.)

Mathematical Equivalence

ON

The height of a water balloon that is launched into the air is given by h(t) = -5t² + 20t + 25. From what height was the balloon launched?

Mathematical Equivalence

ON

The height of a water balloon that is launched into the air is given by h(t) = -5t² + 40t + 2. From what height was the balloon released?

• 2 meters

• 5 meters

• 40 meters

• 20 meters