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Nat2105 [25]
3 years ago
12

Using the graph, predict the y-value when the x-value is 13

Mathematics
1 answer:
sveta [45]3 years ago
7 0

9514 1404 393

Answer:

  D)  20

Step-by-step explanation:

Each point marked on the graph is 3 units higher and 2 units to the right of the one before. The last dot is at x=9, so a dot at x=13 will be 2×2=4 units to the right. At the same rate of increase, it will be 2×3=6 units higher than 14.

The y-value is predicted to be 20 at x=13.

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Which graph is a one-to-one function
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Step-by-step explanation:

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3 years ago
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mamaluj [8]

Answer:

The answer is below

Step-by-step explanation:

Two triangles are said to be similar if their corresponding angles are equal and the corresponding sides are in proportion.

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In triangle STU:

|ST|=\sqrt{(-1-2)^2+(-2-(-4))^2}=\sqrt{13}\\\\|SU|=\sqrt{(-1-2)^2+(-4-(-4))^2}  =3\\\\|TU|=\sqrt{(-1-(-1))^2+(-4-(-2))^2}=2

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Hence:

|QR| / |TU| = |PR| / |SU| = |PQ| / |ST|

Therefore, △PQR and △STU are similar triangles since the ratio of their sides are in the same proportion.

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Answer:

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