BI Ch. 1 - 3 EOC Review

Front

What is the leading coefficient in the quadratic equation y = x^2 + 5x + 7?

Back

The leading coefficient is 1.

Front

In a cubic function, what is the general form of the equation?

Back

The general form is f(x) = ax^3 + bx^2 + cx + d.

Front

Solve the quadratic equation a^2 + 2a - 24 = 0.

Back

The solutions are a = -6 and a = 4.

Front

What are the roots of the function f(x) = x^2 + 3x - 4?

Back

The roots are x = 1 and x = -4.

Front

What is another term for the x-intercepts of a function?

Back

The x-intercepts are also called the roots.

Front

What does the vertex of a parabola represent?

Back

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

Front

How do you find the axis of symmetry for a quadratic function?

Back

The axis of symmetry can be found using the formula x = -b/(2a).

Front

What is the standard form of a quadratic equation?

Back

The standard form is y = ax^2 + bx + c.

Front

What is the discriminant in a quadratic equation and what does it indicate?

Back

The discriminant is b^2 - 4ac; it indicates the nature of the roots.

Front

If a quadratic equation has a negative discriminant, what can be said about its roots?

Back

The roots are complex (not real).