x and y intercepts

Front

What is the definition of a y-intercept?

Back

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

Front

How do you find the y-intercept from a table of values?

Back

Look for the ordered pair where the x-value is 0. The corresponding y-value is the y-intercept.

Front

What is the definition of an x-intercept?

Back

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

Front

How do you find the x-intercept from a table of values?

Back

Look for the ordered pair where the y-value is 0. The corresponding x-value is the x-intercept.

Front

Given the equation y = 2x + 4, what is the y-intercept?

Back

The y-intercept is 4, represented as the point (0, 4).

Front

Given the equation y = -3x + 6, what is the x-intercept?

Back

The x-intercept is 2, represented as the point (2, 0).

Front

What does the point (0, -4) represent in terms of intercepts?

Back

It represents the y-intercept of a line.

Front

What does the point (-2, 0) represent in terms of intercepts?

Back

It represents the x-intercept of a line.

Front

If a graph has a y-intercept of -1, what does this mean?

Back

It means the line crosses the y-axis at the point (0, -1).

Front

How can you identify the x-intercept from a graph?

Back

Find the point where the graph crosses the x-axis; this point will have a y-value of 0.