A2 Unit 2 Review

Front

What is the equation for the height of a rock dropped from a height?

Back

h = -16t² + h₀, where h₀ is the initial height.

Front

How do you find the time it takes for an object to hit the ground when dropped from a height?

Back

Set h = 0 in the equation h = -16t² + h₀ and solve for t.

Front

What is the vertex of a parabola?

Back

The vertex is the highest or lowest point of the parabola, depending on its orientation.

Front

How do you find the maximum height of a projectile modeled by a quadratic equation?

Back

Use the formula t = -b/(2a) to find the time at which maximum height occurs, then substitute t back into the equation.

Front

What are the roots or x-intercepts of a quadratic function?

Back

The points where the graph intersects the x-axis, found by solving the equation h = 0.

Front

What is the axis of symmetry in a quadratic function?

Back

The vertical line that divides the parabola into two mirror-image halves, given by x = -b/(2a).

Front

What does the term 'h' represent in projectile motion equations?

Back

The height of the object at time t.

Front

What is the significance of the coefficient -16 in the height equation?

Back

It represents the acceleration due to gravity in feet per second squared.

Front

How do you determine the time it takes for an object to reach its maximum height?

Back

Use the formula t = -b/(2a) from the quadratic equation h = at² + bt + c.

Front

What is the standard form of a quadratic equation?

Back

f(x) = ax² + bx + c, where a, b, and c are constants.