Graphs of Quadratics

Front

What is the vertex of the quadratic function y = x² + 4x + 3?

Back

(-2, -1)

Front

What is the domain and range of the function y = x² + 4x + 3?

Back

Domain: All real numbers, Range: y ≥ -4

Front

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

Back

x = -b/(2a) (for the quadratic equation ax² + bx + c)

Front

What is the vertex of the parabola represented by the equation y = -2(x - 4)² + 12.5?

Back

(4, 12.5)

Front

Which point is an example of a y-intercept?

Back

(0, 4)

Front

What is the standard form of a quadratic equation?

Back

y = ax² + bx + c

Front

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

Back

Set x = 0 and solve for y.

Front

What does the 'a' value in a quadratic equation determine?

Back

The direction of the parabola (opens up if a > 0, opens down if a < 0).

Front

What is the significance of the vertex in a quadratic function?

Back

It represents the maximum or minimum point of the parabola.

Front

How do you determine if a quadratic function has a maximum or minimum value?

Back

Check the sign of 'a' in the equation y = ax² + bx + c.