QSE3 Review 2A, 7I Quadratics Domain and Range

Front

What is the domain of a quadratic function?

Back

Front

What is the range of a quadratic function that opens upwards?

Back

Front

What is the vertex of a quadratic function?

Back

The vertex of a quadratic function is the highest or lowest point on the graph, depending on whether it opens upwards or downwards.

Front

How do you find the vertex of a quadratic function in standard form?

Back

Front

What does the 'a' value in a quadratic function indicate?

Back

The 'a' value in a quadratic function determines the direction of the parabola: if 'a' is positive, it opens upwards; if 'a' is negative, it opens downwards.

Front

What is interval notation?

Back

Interval notation is a way of writing subsets of the real number line, using parentheses and brackets to indicate whether endpoints are included or excluded.

Front

What is the difference between domain and range?

Back

The domain is the set of all possible input values (x-values) for a function, while the range is the set of all possible output values (y-values) of the function.

Front

How do you express the domain of a function that is defined for all real numbers?

Back

Front

What is the range of a quadratic function that opens downwards?

Back

Front

What is the significance of the y-coordinate of the vertex in a quadratic function?

Back

The y-coordinate of the vertex represents the maximum or minimum value of the quadratic function.