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3 years ago

9

Which graph does not represent a function'

1 answer:

Leno4ka [110]3 years ago

6 0

Answer:

D

Step-by-step explanation:

Hey There!

In order for it to be a function the x value cannot repeat

In the last graph the x value repeats multiple times therefore it is not a function

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4 years ago

Use lengths |OQ| = 9.4 units and |OQ’| = 17.1 units to determine the scale factor r of dilation D (round to the nearest hundredt

NNADVOKAT [17]

Answer:

Scale factor = 1.82 units.

Step-by-step explanation:

We have been given that side length OQ of our prei-mage is 9.4 units and side length OQ' after dilation is 17.1 units. Since our pre-image (original image) is smaller than our new image, so our scale factor (r) will be greater than 1.

Since we know that in a dilation, the sides of the pre-image and the corresponding sides of the image are proportional, so we will use proportion to find a scale factor our given side lengths as:

$\frac{OQ'}{OQ}=\frac{17.1}{9.4}$

$\frac{OQ'}{OQ}=1.8191$

Upon multiplying both sides of our equation by OQ we will get,

$\frac{OQ'}{OQ}\times OQ=1.8191\times OQ$

$OQ'=1.8191\times OQ$

Upon rounding our answer to nearest hundredths place we will get,

$OQ'\approx 1.82\times OQ$

Since side length OQ' is 1.82 times side length OQ, therefore, our scale factor (r) will be 1.82 units.

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3 years ago