Identifying Y-intercept(Graphs)

Front

What is the y-intercept?

Back

The y-intercept is the point where a line crosses the y-axis on a graph. It is represented as (0, y) where y is the value of the y-intercept.

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 positive y-intercept indicate on a graph?

Back

A positive y-intercept indicates that the line crosses the y-axis above the origin (0,0).

Front

What does a negative y-intercept indicate on a graph?

Back

A negative y-intercept indicates that the line crosses the y-axis below the origin (0,0).

Front

If a line has a y-intercept of -9, where does it cross the y-axis?

Back

The line crosses the y-axis at the point (0, -9).

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 in real-world problems, such as initial costs or starting quantities.

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 equation y = 2x + 5?

Back

The y-intercept is 5, which means the line crosses the y-axis at (0, 5).

Front

What is the y-intercept of the equation y = -3x - 6?

Back

The y-intercept is -6, which means the line crosses the y-axis at (0, -6).

Front

If a line has a y-intercept of 4, what does this tell you about the line?

Back

It tells you that when x = 0, the value of y is 4, meaning the line crosses the y-axis at (0, 4).