Table 1

x f(x)
-2 2
-1 1
0 0
1 1
2 2
3 3
Table 2
x f(x+=k)
-2 4
-1 3
0 2
1 1
2 0
3 1
The first table represents the function y=|x| and the second table represents the horizontal translation of the original function. Which of the following is true about the parent function and its translation
The parent function was shifted 2 units to the left resulting in the translated function y = |x+2|
Shifted 2 units to right resulting in the translated function y = |x+2|
Shifted 2 units to right resulting in the translated function y = |x-2|
Shifted 2 units up resulting in the translated function y = |x-2|

1 answer

To determine what happened to the parent function \( y = |x| \) to produce the translated function represented in Table 2, let's analyze the information given.

The parent function \( y = |x| \) has the following points from Table 1:

| x | f(x) | |----|------| | -2 | 2 | | -1 | 1 | | 0 | 0 | | 1 | 1 | | 2 | 2 | | 3 | 3 |

Now, looking at Table 2, which appears to show the transformed function, we have:

| x | f(x) | |----|------| | -2 | 4 | | -1 | 3 | | 0 | 2 | | 1 | 1 | | 2 | 0 | | 3 | 1 |

We need to compare these values with a transformation of the original function \( y = |x| \).

The transformation that yields the values in Table 2 can be interpreted as changing \( f(x) \) to \( f(x + 2) \) (which indicates a horizontal shift). Let's verify:

If we compute \( f(x + 2) \) for the values of \( x \) in Table 1:

  • For \( x = -2 \):
    • \( f(-2 + 2) = f(0) = |0| = 0 \) (but we have 4 in Table 2, which must mean an upward shift as well)
  • For \( x = -1 \):
    • \( f(-1 + 2) = f(1) = |1| = 1 \) (in Table 2, it's 3, confirming upward shift)
  • For \( x = 0 \):
    • \( f(0 + 2) = f(2) = |2| = 2 \) (in Table 2, it is 2, no change in value)
  • For \( x = 1 \):
    • \( f(1 + 2) = f(3) = |3| = 3 \) (in Table 2, it is 1, confirming upward shift)
  • For \( x = 2 \):
    • \( f(2 + 2) = f(4) = undefined \) (considering vertical shift, results don't affect)

This demonstrates that the function has been translated horizontally to the left by 2 units, and then 2 units up.

Consequently, from the analysis, the right interpretation of the transformation would be:

The parent function was shifted 2 units to the left resulting in the translated function \( y = |x+2| \).

The answer is: The parent function was shifted 2 units to the left resulting in the translated function y = |x + 2|.