Determine the Correct Table: Y as a Function of X Less Than X for 3

Function Tables with Linear Relationships

Since Y is a function of X that matches any value of X a number less than it for 3

Choose the table corresponding to the function description.

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Step-by-step video solution

Watch the teacher solve the problem with clear explanations
00:00 Choose the appropriate table
00:03 Function equation according to the given data
00:08 We'll substitute values in X and find the corresponding Y values according to the given data
00:12 Each time we'll solve accordingly and fill in our table
00:26 And this is the solution to the question

Step-by-step written solution

Follow each step carefully to understand the complete solution
1

Understand the problem

Since Y is a function of X that matches any value of X a number less than it for 3

Choose the table corresponding to the function description.

2

Step-by-step solution

The problem requires us to identify a table corresponding to the function described by Y=X3 Y = X - 3 . We will calculate Y Y for each X X provided in the choices.

Applying the formula, for choice 1 where X=0,1,2 X = 0, 1, 2 :

  • If X=0 X = 0 , then Y=03=3 Y = 0 - 3 = -3 .
  • If X=1 X = 1 , then Y=13=2 Y = 1 - 3 = -2 .
  • If X=2 X = 2 , then Y=23=1 Y = 2 - 3 = -1 .

For choice 2 where X=2,4,6 X = 2, 4, 6 :

  • If X=2 X = 2 , then Y=23=1 Y = 2 - 3 = -1 .
  • If X=4 X = 4 , then Y=43=1 Y = 4 - 3 = 1 .
  • If X=6 X = 6 , then Y=63=3 Y = 6 - 3 = 3 .

For choice 3 where X=2,5,8 X = 2, 5, 8 :

  • If X=2 X = 2 , then Y=23=1 Y = 2 - 3 = -1 .
  • If X=5 X = 5 , then Y=53=2 Y = 5 - 3 = 2 .
  • If X=8 X = 8 , then Y=83=5 Y = 8 - 3 = 5 .

For choice 4 where X=8,6,4 X = -8, -6, -4 :

  • If X=8 X = -8 , then Y=83=11 Y = -8 - 3 = -11 .
  • If X=6 X = -6 , then Y=63=9 Y = -6 - 3 = -9 .
  • If X=4 X = -4 , then Y=43=7 Y = -4 - 3 = -7 .

Choosing from these computations, the first table matches the description Y=X3 Y = X - 3 , where for X=0,1,2 X = 0, 1, 2 gives Y=3,2,1 Y = -3, -2, -1 respectively.

Therefore, the table corresponding to the function description is choice 1.

3

Final Answer

XY012

Key Points to Remember

Essential concepts to master this topic
  • Function Rule: Y = X - 3 means subtract 3 from each X-value
  • Technique: Calculate systematically: X = 0 gives Y = 0 - 3 = -3
  • Check: Verify each pair satisfies Y = X - 3: (1, -2) means -2 = 1 - 3 ✓

Common Mistakes

Avoid these frequent errors
  • Misinterpreting the function description
    Don't read 'X less than it for 3' as X + 3 = wrong Y-values! This reverses the operation and gives positive results instead of negative. Always translate carefully: 'X less than it for 3' means Y = X - 3.

Practice Quiz

Test your knowledge with interactive questions

Is the given graph a function?

–4–4–4–3–3–3–2–2–2–1–1–1111222333444–2–2–2–1–1–1111222000

FAQ

Everything you need to know about this question

What does 'Y is a function of X that matches any value of X a number less than it for 3' actually mean?

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This phrase means Y = X - 3. The key words are 'less than it for 3' which tells us to subtract 3 from each X-value to get the corresponding Y-value.

How do I read function tables correctly?

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Look at the X-row first, then check the Y-row below it. Each column shows an (X,Y) pair. For example, if X = 0 and Y = -3, that's the point (0, -3).

Why are some Y-values negative when X-values are positive?

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Because we're subtracting 3 from each X-value! When X = 0, we get Y = 0 - 3 = -3. When X = 1, we get Y = 1 - 3 = -2. This is normal for Y=X3 Y = X - 3 .

How can I quickly check if a table matches Y = X - 3?

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Pick any (X,Y) pair from the table and substitute: Does Y equal X minus 3? If all pairs satisfy this rule, you've found the right table!

What if I get confused by the wording of function descriptions?

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  • 'Less than' means subtraction
  • 'More than' or 'greater than' means addition
  • 'Times' or 'multiplied by' means multiplication
  • Always translate the words into mathematical symbols first!

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