Use: (y2 -y1)/(x2 -x1) to find the slope.
Use: y -y1 = m(x -x1) to find the slope intercept equation whereas m is the slope.
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y = {slope}x + {y intercept}
Use the equation; y=mx+b where m is the slope Use your 2 points as y and b (intercept)
Here is how to solve it. First, find the slope of the given line. To do this, solve the equation for "y". That will convert the equation to the slope-intercept form. From there, you can immediately read off the slope. Since parallel lines have the same slope, the line you are looking for will have the same slope. Now you need to use the point-slope form of the equation, with the given point, and the slope you just calculated. Finally, solve this equation for "y" to bring it into the requested slope-intercept form.
You can either measure or estimate the coordinates visually from the graph, or solve the equation underlying the graph.
y-2 +2 y=2 slope is undefined y intercept is 2