The equation of a line is a mathematical representation of a straight line on a graph. It is typically written in the form y = mx + b, where m is the slope of the line and b is the y-intercept.
The slope of a line can be found by dividing the change in the y-coordinates of two points on the line by the change in the x-coordinates of the same two points. This can also be represented as m = (y2 - y1) / (x2 - x1).
The y-intercept of a line is the point where the line crosses the y-axis on a graph. It is represented by the value b in the equation y = mx + b.
No, the equation of a line requires at least two points. This is because the slope of a line cannot be determined with only one point.
To graph a line using its equation, you can plot the y-intercept on the y-axis and then use the slope to find additional points on the line. You can then connect the points with a straight line to graph the equation.