Usually we ask you to show your work, so we can see where you got stuck.flnursegirl said:
That's a good method, and none of the answers give the same "$m$" value, so it appears your text has a typo. You should use parentheses when you use the "/" symbol, so no one confusesflnursegirl said:
The slope of a line is a measure of its steepness, or how much the line rises or falls as it moves horizontally. It is calculated by dividing the change in the y-coordinates by the change in the x-coordinates between any two points on the line.
To find the slope of a line, choose any two points on the line and label their coordinates as (x1, y1) and (x2, y2). Then, use the formula m = (y2 - y1) / (x2 - x1) to calculate the slope.
A positive slope indicates that the line is increasing from left to right. This means that as the x-coordinate increases, the y-coordinate also increases.
A negative slope indicates that the line is decreasing from left to right. This means that as the x-coordinate increases, the y-coordinate decreases.
Two lines are parallel if they have the same slope. This means that they have the same steepness and will never intersect. To determine if two lines are parallel, find the slope of each line and then compare them. If the slopes are equal, the lines are parallel.
