Unit Four Review Assignment

Front

What is the height of the cliff if a rock launched off of it reaches a height of 155 ft?

Back

The height of the cliff is 155 ft.

Front

What are the factors of the quadratic expression x² + 3x - 40?

Back

The factors are (x + 8)(x - 5).

Front

What is the maximum height reached by an object modeled by the equation h = -4t² + 2t?

Back

The maximum height is reached at 0.25 seconds.

Front

What does the function s(t) = -16t² + 64t + 80 represent in terms of an object's launch?

Back

It represents the height of an object launched in the air, where the y-value of the vertex indicates the launch height.

Front

When does a rock launched off a cliff hit the ground if modeled by a specific height function?

Back

The rock hits the ground at 4.393 seconds.

Front

What is the vertex of a quadratic function and why is it important?

Back

The vertex is the highest or lowest point of the parabola, indicating maximum or minimum values.

Front

How do you find the y-intercept of a quadratic function?

Back

Set x = 0 in the function and solve for y.

Front

What is the axis of symmetry in a quadratic function?

Back

The axis of symmetry is a vertical line that divides the parabola into two mirror-image halves, found at x = -b/(2a).

Front

What does the term 'zeros' refer to in a quadratic function?

Back

Zeros are the x-values where the function equals zero, indicating where the graph intersects the x-axis.

Front

How can you determine the maximum height of a projectile using its height function?

Back

Find the vertex of the parabola represented by the height function.