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If the intersection point on the graph is \(\left(\frac{7}{2},\frac{5}{2}\right)\), what is its decimal form?

Answer and explanation

Correct answer: Point \(\left(3.5,2.5\right)\)

The direct answer is A: \(\left(3.5,2.5\right)\). Convert each coordinate separately. Since \(7\div2=3.5\), we have \(\frac72=3.5\). Similarly, \(5\div2=2.5\), so \(\frac52=2.5\). Thus the decimal point is \(\left(3.5,2.5\right)\). Option A preserves both coordinate positions and converts both fractions correctly. Option B swaps the coordinates, changing the point to a different location. Option C incorrectly reads the fraction as 7.2 and 5.2; a fraction bar means division, not a decimal point. Option D gives 0.7 and 0.5, which would be related to dividing by 10, not by 2. The order of an ordered pair matters: first coordinate is \(x\), second is \(y\). A useful check is to multiply each decimal by 2: \(3.5\times2=7\) and \(2.5\times2=5\).

Related tags

Fraction CoordinatesDecimal FormGraph Reading

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