Finding the Equation of a Line Parallel to Through
To find the equation of a line parallel to that passes through the point , apply the five-step parallel-line procedure and write the result in slope-intercept form.
Step 1 — Find the slope of the given line. The equation is already in slope-intercept form, so the slope is .
Step 2 — Find the slope of the parallel line. Parallel lines share the same slope, so .
Step 3 — Identify the point. The given point is .
Step 4 — Substitute into the point-slope form :
Simplify inside the parentheses:
Distribute:
Step 5 — Write in slope-intercept form by adding 1 to both sides:
The equation of the parallel line is . Both lines have slope , confirming they are parallel, but they have different -intercepts ( vs. ), so they are distinct lines that never intersect.
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Finding the Equation of a Line Parallel to Through
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