Which of the following is the equation of the line A graphed in the xy-plane that passes through the point (−2,2) and is parallel to the line B whose equation is y−3=0 ?Choose 1 answer:(A) y+2=0(B) x+2=0(C) y−2=0(D) x−2=0
Q. Which of the following is the equation of the line A graphed in the xy-plane that passes through the point (−2,2) and is parallel to the line B whose equation is y−3=0 ?Choose 1 answer:(A) y+2=0(B) x+2=0(C) y−2=0(D) x−2=0
Line B equation: Line B has an equation of y−3=0, which simplifies to y=3. This is a horizontal line because the slope is 0 (it does not change in the y-direction regardless of the x-value).
Parallel lines: Since line A is parallel to line B, it must also be a horizontal line, which means it will have the same slope of 0.
Line A equation: Line A passes through the point (−2,2). Since it is horizontal, its equation will have the form y=k, where k is the y-coordinate of the point it passes through.
Substituting coordinates: Substituting the y-coordinate of the point (−2,2) into the equation y=k gives us y=2. This is the equation of line A.
Matching with answer choice: Comparing the equation y=2 with the answer choices, we find that it matches with choice (C) y−2=0.
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