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Basile [38]
3 years ago
6

If f(x) = x2, which of the following describes the graph of f(x - 1)? A. The graph of f(x - 1) is a horizontal shift of f(x) = x

2 one unit to the right. B. The graph of f(x - 1) is a vertical shift of f(x) = x2 one unit down. C. The graph of f(x - 1) is a vertical shift of f(x) = x2 one unit up. D. The graph of f(x - 1) is a horizontal shift of f(x) = x2 one unit to the left.
Mathematics
2 answers:
MrRissso [65]3 years ago
6 0

Answer:

Choice A is correct.

Step-by-step explanation:

We have given that

f(x) = x²

We have to find the description of the graph f(x-1).

f(x-1) = (x-1)²

When we replace x with x-a , the resulting graph is a horizontal shift of f(x) by a units to the right.

The graph of f(x-1) is horizontal shift of f(x) by 1 units to the right.

Hence, Choice A is correct.

pantera1 [17]3 years ago
4 0

Answer:

A

Step-by-step explanation:

To understand this, we can look at the vertical & horizontal translations of a parabola of the form  f(x)=x^2

  • A vertically translated parabola has the form  f(x)=x^2+k, where k is the vertical shift upward when k is positive and vertical shift downward when k is negative.
  • A horizontally translated parabola has the form  f(x)=(x-a)^2, where a is the horizontal shift rightward when a is positive and horizontal shift leftward when a is negative.

When we replace x of the original function with (x-1), we have  f(x)=(x-1)^2. According to the rules, this means that the original function is shifted 1 unit right (horizontal shift).

Correct answer is A.

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