alleryThe graph of ax + by + c = 0, with a and b not both zero, is a:
AHyperbola
BStraight line
CParabola arc
DCircle curve
Answer & Solution
Correct answer: B. Straight line
1. A linear equation in two variables is being graphed.
2. Every solution pair lies on one line.
3. So the graph is a straight line.
_Source: syllabus Mathematics, Chapter 7, Coordinate Geometry._
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