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What is the y-intercept of the graph (y=2|x|-3)?

Answer and explanation

Correct answer: (0,-3)

The governing concept is the definition of a y-intercept: it is the point where a graph crosses the y-axis, and every point on that axis has x=0. Substitute x=0 into y=2|x|−3. This gives y=2|0|−3=0−3=−3, so the y-intercept is (0,−3), making option A correct. Option B has the wrong sign. Options C and D have y=0, so they are written as x-axis points rather than y-axis points. In fact, solving 2|x|−3=0 gives |x|=3 and the x-intercepts (3,0) and (−3,0). This comparison clarifies why the requested intercept must be found by setting x, not y, equal to zero.

Related tags

Y-InterceptAbsolute-ValueCoordinate-GeometryGraphs Of Standard FunctionsRelations And FunctionsMathematicsClass 11 Mcq

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