What is the length of one leg of the triangle?
2 answers:
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The sequence of transformations used to obtain figure A'B'C'D'from figure ABCD are a reflection across the y-axis followed by a horizontal translation 1 unit right
<h3>Complete question</h3>Figure ABCD is transformed to figure A'B'C'D', as shown below: (see attachment)
Which of the following sequences of transformations is used to obtain figure A'B'C'D'from figure ABCD?
<h3>How to determine the transformation?</h3>From the attached figure, we can see that:
ABCD and A'B'C'D' are on either sides of the y-axis.
This means that ABCD is first reflected across the y-axis.
ABCD is 2 units from the y-axis, while A'B'C'D' is 1 unit from the y-axis.
This means that the reflection is followed by a translation.
The unit of translation is:
Unit = 2 - 1
Evaluate
Unit = 1
1 represents a right translation
Hence, the sequence of transformations are a reflection across the y-axis followed by a horizontal translation 1 unit right
Read more about transformation at:
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Answer:
Correct option: (A)
Step-by-step explanation:
The correlating linear model to investigate the use of text messaging over time is:
The general simple linear regression line is given by,
Here,
<em>α</em> = intercept of <em>y</em>,
<em>β</em> = slope (or regression) coefficient,
<em>X</em> = independent variable = number of years after 2006
<em>Y</em> = dependent variable = average number of text messages a person sends monthly.
The given regression line (or estimating line) is, .
The <em>y</em>-intercept is the expected mean value of Y when X = 0.
Compute the <em>y</em>-intercept as follows:
So, the <em>y</em>-intercept of 65 implies that in 2006 the average number of texts sent by a person is 65 texts per month.
Thus, the correct option is (A).