Q2 BM Review

Front

What is the maximum height of a projectile modeled by the equation h = -0.3t² + 4t + 1?

Back

The maximum height is 14.3 feet.

Front

How do you determine the time it takes for a projectile to reach its maximum height in the equation h = -0.3t² + 4t + 1?

Back

The time to reach maximum height is 6.7 seconds.

Front

What is the height of a trampoline jumper modeled by the equation h = -0.5t² + 14t after 3 seconds?

Back

The height after 3 seconds is 37.5 cm.

Front

In the equation y = -7x² + x + 11, which direction does the graph open?

Back

The graph opens down.

Front

How do you find when a projectile hits the ground using the equation h(t) = -t² + 8t?

Back

The projectile hits the ground after 8 seconds.

Front

What does the coefficient of t² indicate about the direction of a parabola in projectile motion?

Back

If the coefficient is negative, the parabola opens down; if positive, it opens up.

Front

What is the vertex of a parabola represented by the equation h = -0.3t² + 4t + 1?

Back

The vertex represents the maximum height of the projectile.

Front

How can you find the vertex of a quadratic function in standard form?

Back

The vertex can be found using the formula t = -b/(2a) where a and b are coefficients from the equation ax² + bx + c.

Front

What is the significance of the y-intercept in a projectile motion equation?

Back

The y-intercept represents the initial height from which the projectile is launched.

Front

How do you determine the time of flight for a projectile?

Back

Set the height equation to zero and solve for t.