Identifying y-intercept

Front

What is the definition of the y-intercept in a graph?

Back

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

Front

How can you find the y-intercept from a linear equation in slope-intercept form?

Back

In the slope-intercept form y = mx + b, the y-intercept is the value of b.

Front

What does it mean if the y-intercept is negative?

Back

A negative y-intercept indicates that the line crosses the y-axis below the origin.

Front

What does it mean if the y-intercept is zero?

Back

A y-intercept of zero means the line crosses the origin (0,0).

Front

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

Back

To find the y-intercept from a graph, look for the point where the line intersects the y-axis.

Front

What is the significance of the slope in relation to the y-intercept?

Back

The slope indicates the steepness of the line, while the y-intercept indicates where the line starts on the y-axis.

Front

What is the y-intercept of the equation y = 3x - 5?

Back

The y-intercept is -5.

Front

What is the y-intercept of the equation y = -2x + 4?

Back

The y-intercept is 4.

Front

What does an undefined slope indicate about a line?

Back

An undefined slope indicates a vertical line, which does not have a y-intercept.

Front

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

Back

Look for the value of y when x is 0; that value is the y-intercept.