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Question 11 of 25 Which of the following functions is graphed below? A. y = x +51 + 4 B. V = x + 51-4 C. y = x-5|+4 D. y = x-51-4

Question 11 Of 25 Which Of The Following Functions Is Graphed Below A Y X 51 4 B V X 514 C Y X54 D Y X514 class=

Sagot :

The simple way to answer this is to take a few points from the graph and compare it with each option.

Let's take points at x = 0, 1, 2

From graph,

When x = 0, y = 1, hence the point is (0, 1)

When x = 1, y = 0, hence the point is (1, 0)

When x = 2, y = -1, hence the point is (2, -1)

Now, put the same x values in the given options to evaluate the output.

For x = 0, the pair should be (0, 1),

1) |x + 5| + 4 = |0 + 5| + 4 = |5| + 4 = 9 => (0, 9) Not true

2) |x + 5| - 4 = |0 + 5| - 4 = |5| - 4 = 1 => (0, 1) True

3) |x - 5| + 4 = |0 - 5| + 4 = |-5| + 4 = 5 + 4 = 9 => (0, 9) Not True

4) |x - 5| - 4 = |0 - 5| - 4 = |-5| - 4 = 5 - 4 = 1 => (0, 1) True

Hence, 2nd and 4th options can be true. Now, evaluate these two options with some other point.

For x = 1, the pair should be (1, 0),

2) |x + 5| - 4 = |1 + 5| - 4 = |6| - 4 = 2 => (0, 2) Not True

4) |x - 5| - 4 = |1 - 5| - 4 = |-4| - 4 = 4 - 4 = 1 => (0, 0) True

Hence, the 4th option is true.

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