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

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

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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?

查看解析

登录即可查看完整答案

类似问题

Question at position 20 Examine the code: class Person: def __init__(self, name): self.name = name def __eq__(self, other): return self.name == other What is the result of: p = Person("Alice")print(p == "Alice") Raises a TypeErrorTrueNoneFalseClear my selection

What would be the output of the following code? a = 5 b = a c = 6 print(c == a)

What is wrong with this code? def my_func(var): if var = "the sky": print("wow.") elif var = "the ocean": print("wow.") else: print("what?")

In a consumer society, many adults channel creativity into buying things

Economic stress and unpredictable times have resulted in a booming industry for self-help products

People born without creativity never can develop it

A product has a selling price of $20, a contribution margin ratio of 40% and fixed cost of $120,000. To make a profit of $30,000. The number of units that must be sold is: Type the number without $ and a comma. Eg: 20000

Which of the following statement regarding cost is correct:

更多留学生实用工具

希望你的学习变得更简单

Question at position 20 Examine the code: class Person: def init(self, name): self.name = name def eq(self, other): return self.name == other What is the result of: p = Person("Alice")print(p == "Alice") Raises a TypeErrorTrueNoneFalseClear my selection