Finding the y intercept on a graph

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 a linear equation?

Back

To find the y-intercept from a linear equation in the form y = mx + b, the y-intercept is the value of b.

Front

What does a y-intercept of 0 indicate?

Back

A y-intercept of 0 indicates that the line crosses the origin (0,0) on the graph.

Front

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

Back

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

Front

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

Back

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

Front

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

Back

You can determine the y-intercept by locating the point where the line intersects the y-axis.

Front

What is the y-intercept of the line represented by the equation y = 2x + 3?

Back

The y-intercept is 3.

Front

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

Back

The y-intercept is -2.

Front

If a line is horizontal, what can you say about its y-intercept?

Back

The y-intercept is equal to the constant value of y for all points on the line.

Front

What happens to the y-intercept if the equation of the line is changed to y = 4?

Back

The y-intercept remains 4, as the line is horizontal.