Algebra 2 Semester Exam

Front

What is the definition of a y-intercept?

Back

The y-intercept is the point where a graph intersects the y-axis, represented as (0, y).

Front

How do you find the y-intercept from a graph?

Back

To find the y-intercept, look for the point where the graph crosses the y-axis.

Front

What is the definition of an x-intercept?

Back

The x-intercept is the point where a graph intersects the x-axis, represented as (x, 0).

Front

How do you find the x-intercept from a graph?

Back

To find the x-intercept, look for the point where the graph crosses the x-axis.

Front

What does it mean for a function to be positive on an interval?

Back

A function is positive on an interval if its values are greater than zero for all x in that interval.

Front

What does it mean for a function to be negative on an interval?

Back

A function is negative on an interval if its values are less than zero for all x in that interval.

Front

How can you determine the intervals of positivity from a graph?

Back

Identify the sections of the graph that lie above the x-axis.

Front

How can you determine the intervals of negativity from a graph?

Back

Identify the sections of the graph that lie below the x-axis.

Front

What is the significance of the point (0, y) in a function's graph?

Back

The point (0, y) represents the y-intercept, indicating the value of the function when x is zero.

Front

What is the significance of the point (x, 0) in a function's graph?

Back

The point (x, 0) represents the x-intercept, indicating the value of x when the function equals zero.