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Which point lies on the line 4x − 5y = 0?

Answer and explanation

Correct answer: (5, 4)

A point lies on a line if its coordinates satisfy the equation of that line. Test each candidate by substituting its x- and y-coordinates into 4x − 5y. For (5, 4), the expression is 4(5) − 5(4) = 20 − 20 = 0, so this point satisfies the equation and option B is correct. For (4, 5), the value is 16 − 25 = −9. For (2, 5), it is 8 − 25 = −17, and for (5, 2), it is 20 − 10 = 10. Since none of these values is zero, the other three points do not lie on the line. Direct substitution is the decisive verification method.

Related tags

Straight LinePoint On LineSubstitutionLinear EquationsGraphical Method Of Finding Solutions.Graphical Method Of Finding SolutionsPair Of Linear Equations In Two VariablesMathematics

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