x-intercept and y-intercept

Front

What is the x-intercept?

Back

The x-intercept is the point where a graph crosses the x-axis, meaning the value of y is zero.

Front

What is the y-intercept?

Back

The y-intercept is the point where a graph crosses the y-axis, meaning the value of x is zero.

Front

True or false: The y-intercept of a function ALWAYS occurs where y is equal to zero.

Back

False. The y-intercept occurs where x is equal to zero.

Front

How do you find the x-intercept of a linear equation?

Back

To find the x-intercept, set y to zero and solve for x.

Front

How do you find the y-intercept of a linear equation?

Back

To find the y-intercept, set x to zero and solve for y.

Front

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

Back

The x-intercept is 2, found by setting y to 0: 0 = 2x - 4.

Front

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

Back

The y-intercept is -4, found by setting x to 0: y = 2(0) - 4.

Front

If a graph has an x-intercept at (3, 0), what does this mean?

Back

It means that when y is 0, x is 3.

Front

If a graph has a y-intercept at (0, -5), what does this mean?

Back

It means that when x is 0, y is -5.

Front

What does it mean if a line has no x-intercept?

Back

It means the line is parallel to the x-axis and never crosses it.