Algebra Unit 4 Test Review

Front

What is the formula for the distance a rock travels after t seconds when dropped from a height on the Moon?

Back

d(t) = 0.8t²

Front

How do you calculate the average speed of an object?

Back

Average speed = Total distance traveled / Total time taken.

Front

What is the value of f(5) if f(x) = 2x² - 3x?

Back

f(5) = 35.

Front

What does it mean for a function to break even?

Back

A function breaks even when its output (profit) is zero.

Front

What is the vertex form of a quadratic function?

Back

f(x) = a(x - h)² + k, where (h, k) is the vertex.

Front

How do you find the x-intercepts of a parabola?

Back

Set f(x) = 0 and solve for x.

Front

What transformation occurs when you reflect a graph about the x-axis?

Back

The y-values of the function are negated.

Front

What does shifting a graph 4 units to the right mean?

Back

Replace x with (x - 4) in the function.

Front

What is the significance of the vertex in a parabola?

Back

The vertex represents the maximum or minimum point of the parabola.

Front

How do you determine the direction a parabola opens?

Back

If the coefficient of x² is positive, it opens upward; if negative, it opens downward.