7A-4 Practice

Front

What is the range of a function?

Back

The range of a function is the set of all possible output values (y-values) that the function can produce based on its domain (input values).

Front

How do you find the range of a graph?

Back

To find the range of a graph, identify the lowest and highest points on the graph and determine the set of y-values that the graph covers.

Front

What does it mean for a number to be 'greater than or equal to' a certain value?

Back

It means that the number can be equal to that value or any number larger than it.

Front

What does it mean for a number to be 'less than or equal to' a certain value?

Back

It means that the number can be equal to that value or any number smaller than it.

Front

What is a quadratic function?

Back

Front

What is the vertex of a parabola?

Back

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

Front

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

Back

Front

What is the axis of symmetry in a parabola?

Back

The axis of symmetry is a vertical line that divides the parabola into two mirror-image halves, passing through the vertex.

Front

What does the term 'function' mean in mathematics?

Back

A function is a relation that assigns exactly one output value for each input value.

Front

What is the significance of the x-intercepts of a graph?

Back

The x-intercepts are the points where the graph crosses the x-axis, indicating the values of x for which the function equals zero.