Wk 19: Writing Linear Equations from Graphs

Front

What is the slope-intercept form of a linear equation?

Back

The slope-intercept form is y = mx + b, where m is the slope and b is the y-intercept.

Front

What does 'm' represent in the equation y = mx + b?

Back

'm' represents the slope of the line.

Front

What does 'b' represent in the equation y = mx + b?

Back

'b' represents the y-intercept of the line.

Front

How do you find the slope of a line from a graph?

Back

The slope is found by calculating the rise (change in y) over the run (change in x).

Front

What is the slope of the line represented by the equation y = -3x - 3?

Back

The slope is -3.

Front

If a line has a slope of 0, what does that indicate about the line?

Back

A slope of 0 indicates that the line is horizontal.

Front

If a line has an undefined slope, what does that indicate about the line?

Back

An undefined slope indicates that the line is vertical.

Front

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

Back

The y-intercept is 3.

Front

How can you determine the equation of a line from its graph?

Back

Identify the slope and the y-intercept from the graph, then use the slope-intercept form y = mx + b.

Front

What is the rise in the slope formula?

Back

The rise is the vertical change between two points on the line.