Working with Quadratics-Graded Classwork Review

Front

What is the equation of the axis of symmetry of a parabola?

Back

x = 2

Front

A quadratic is _________ about the vertex.

Back

symmetric

Front

A vertex that represents the LOWEST point on a graph is called _____

Back

minimum

Front

The vertex is defined as:

Back

The highest or lowest point of the parabola.

Front

Standard Form of a Quadratic Equation:

Back

y = ax² + bx + C

Front

What does the 'a' in the quadratic equation y = ax² + bx + C represent?

Back

The coefficient that determines the direction and width of the parabola.

Front

If 'a' is positive in the quadratic equation, what is the shape of the parabola?

Back

Concave up.

Front

If 'a' is negative in the quadratic equation, what is the shape of the parabola?

Back

Concave down.

Front

What is the vertex of the parabola in the equation y = 2x² + 4x + 1?

Back

(-1, -1) (found using vertex formula x = -b/2a)

Front

What is the formula to find the vertex of a parabola given in standard form?

Back

x = -b/(2a) for the x-coordinate, then substitute back to find y.