Which of the following equations represents a line parallel to ?
State the criterion. Two distinct lines are parallel exactly when they have the same slope and different intercepts. The -intercept plays no role in deciding parallelism, so the entire question reduces to comparing slopes.
Read the slope of the given line. In slope-intercept form , the slope is the coefficient of :
Read the slope of each option. All four are already in slope-intercept form:
Select the match. Only the first has slope :
Confirm it is parallel and not the same line. Its intercept differs from , so the two lines are distinct and never meet — setting gives , a contradiction, confirming no intersection.
Note the deliberate distractor. The option has slope , the negative reciprocal of , so that line is perpendicular to the given line, not parallel. Mixing up and is the intended trap.
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