Finding 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. It is the value of y when x is 0.

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 at this point is the y-intercept.

Front

What is the y-intercept of the equation y = 2x + 5?

Back

The y-intercept is 5.

Front

What is the y-intercept of the equation y = -3x + 4?

Back

The y-intercept is 4.

Front

If a line has a y-intercept of -2, what does this mean?

Back

It means that the line crosses the y-axis at the point (0, -2).

Front

What is the y-intercept of the equation y = 0.5x - 1?

Back

The y-intercept is -1.

Front

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

Back

The y-intercept can be identified as the point where the line intersects the y-axis.

Front

What does a positive y-intercept indicate about a line?

Back

A positive y-intercept indicates that the line crosses the y-axis above the origin.

Front

What does a negative y-intercept indicate about a line?

Back

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

Front

What is the y-intercept of the equation y = 4x + 3?

Back

The y-intercept is 3.