and slope. Example 2: Find the equation of the line given the graph:
In the equation above, y2 - y1 = Δy, or vertical change, while x2 - x1 = Δx,
2 2 x y 4 2 2 4 Finding slope between two points on a line the final answer is positive. 8 and 9.
(2) Plot the points in a rectangular coordinate system.
as y=x+7 is linear and there are an infinite number of ordered pairs of x and y ...
We will be using the slope of the line and a point it passes through to do this.
what do ordered pairs have to do with the math in the real world i just don't get it?
Example 2: Write the equation of the line in slope-intercept form with a slope of 7 7 7 and a y y y-intercept of − 4 - \,4 −4.
m(x - x1). The slope, m, is as defined above, x and y are our variables, and (x1, y1) is a point on the line.
Graphing a line given point and slope