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Write the equation for each translation of the graph of y=|1/2x - 2| +3

a) one unit up
b) one unit down
c) one unit to the left
d) one unit to the right

1 Answer

3 votes

Answer:

a) y = |1/2x -2| +4

b) y = |1/2x -2| +2

c) y = |1/2x -3/2| +3

d) y = |1/2x -5/2| +3

Explanation:

You want the equations for the translation of y = |1/2x -2| +3 ...

  • a) one unit up
  • b) one unit down
  • c) one unit to the left
  • d) one unit to the right

Translation

The transformation of a function required to translate it (right, up) by (h, k) units is ...

f(x) = f(x -h) +k

a) Up

For (h, k) = (0, 1), the new function is ...

y = |1/2x -2| +3 +1

y = |1/2x -2| +4

b) Down

For (h, k) = (0, -1), the new function is ...

y = |1/2x -2| +3 -1

y = |1/2x -2| +2

c) Left

For (h, k) = (-1, 0), the new function is ...

y = |1/2(x -(-1)) -2| +3

y = |1/2(x+1) -2| +3

y = |1/2x -3/2| +3

d) Right

For (h, k) = (1, 0), the new function is ...

y = |1/2(x -1) -2| +3

y = |1/2x -5/2| +3

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