Answer:
To write the equation of a line parallel to AB through a given point, you need to follow these steps:
1. Find the slope of line AB using the formula:
slope = (y2 - y1) / (x2 - x1)
where (x1, y1) and (x2, y2) are the given ordered pairs A and B.
2. Since the line you want to find is parallel to AB, it will have the same slope as AB.
3. Use the point-slope form of a linear equation to write the equation of the line. The point-slope form is:
y - y1 = m(x - x1)
where m is the slope you found in step 1, and (x1, y1) is the given point through which the line passes.
4. Simplify the equation by distributing the slope and combining like terms if necessary.
5. Your final equation should be in slope-intercept form, y = mx + b, where m is the slope and b is the y-intercept.