Find the Y-Intercept

Front

What is the y-intercept?

Back

The y-intercept is the point where a line crosses the y-axis on a graph.

Front

How do you find the y-intercept from an equation?

Back

To find the y-intercept from an equation in the form y = mx + b, set x to 0. The value of y when x = 0 is the y-intercept.

Front

What does the point (0, b) represent?

Back

The point (0, b) represents the y-intercept of a line, where b is the value of y when x is 0.

Front

If a line has a y-intercept of (0, 3), what does this mean?

Back

It means that the line crosses the y-axis at the point (0, 3).

Front

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

Back

The y-intercept is 4, which is the value of y when x = 0.

Front

What is the y-intercept of the line represented by the equation y = -x - 2?

Back

The y-intercept is -2, which is the value of y when x = 0.

Front

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

Back

You can identify the y-intercept by looking for the point where the line crosses the y-axis.

Front

What is the y-intercept of the line represented by the equation y = 1/2x - 1?

Back

The y-intercept is -1.

Front

If a graph shows a y-intercept at (0, -3), what does this indicate?

Back

It indicates that the line crosses the y-axis at the point (0, -3).

Front

What is the significance of the y-intercept in real-world scenarios?

Back

The y-intercept can represent the starting value of a situation, such as initial cost or starting population.