Which conditional expression should be used to determine if the variable x is equal to 7?

Question

BlackTom AI · Accepted Answer

To determine whether x is equal to 7, we evaluate the provided options case by case.
Option 1: 'x <= 7' expresses a relational condition where x is less than or equal to 7. This does not test for equality to 7; it would be true for x values like 6, 7, or 5, which is broader than equality.
Option 2: 'x = 7' uses a single equals sign, which in many programming languages represents assignment rather than a comparison. This would assign the value 7 to x instead of checking if x already equals 7, so it does not perform an equality test.
Option 3: 'x == 7' uses a double equals sign, which is the standard equality comparison in languages such as C, Java, JavaScript, and many others. It evaluates to true only when x actually has the value 7, making it the appropriate test for equality.
Option 4: 'x >= 7' checks if x is greater than or equal to 7. Like the first option, this is a directional comparison, not a test for exact equality to 7, and it would be true for 7, 8, 9, etc., but not exclusive to 7.
In summary, you are seeking a test that returns true only when x precisely equals 7, and that is achieved by the equality operator '==', so option 3 is the suitable choice.

BZAN2021.05|.06 Fall 2025 Coding for Business [Karpovsky] Reading Quiz: Conditionals

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BZAN2021.05|.06 Fall 2025 Coding for Business [Karpovsky] Reading Quiz: Conditionals

Which conditional expression should be used to determine if the variable x is equal to 7?

View Explanation

Log in for full answers

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