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Which point is the y-intercept of 2x − 5y = 10 on the graph?

Answer and explanation

Correct answer: (0, −2)

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 the y-axis has x-coordinate 0. Therefore, substitute x = 0 into 2x − 5y = 10: 2(0) − 5y = 10, so −5y = 10 and y = −2. Hence the y-intercept is (0, −2), making option A correct. Option B has y = 0, so it represents an x-axis intercept rather than a y-intercept. Option C results from ignoring the negative sign while dividing by −5. Option D is the x-intercept because putting y = 0 gives 2x = 10 and x = 5. Thus both the coordinate definition and direct substitution confirm option A.

Related tags

Y-InterceptLinear EquationCoordinate AxesGraph InterpretationGraphical Method Of Finding Solutions.Graphical Method Of Finding SolutionsPair Of Linear Equations In Two VariablesMathematics

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