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Alenkasestr [34]
3 years ago
5

Which statements are true? Check all that apply.

Mathematics
2 answers:
AlladinOne [14]3 years ago
5 0

Answer:

-The line that goes through the points (3,7) and (–2,7) is a horizontal line.

-The equation x = –8 is a vertical line that goes through the point (–8,3).

-The line that goes through the points (0,5) and (0,–7) is a vertical line.

Step-by-step explanation:

-The line that goes through the points (3,7) and (–2,7) is a horizontal line.

The equation of this line is y = 7

-The equation x = –8 is a vertical line that goes through the point (–8,3).

The equation of this line is x = -8

-The line that goes through the points (0,5) and (0,–7) is a vertical line.

The equation of this line is x = 0

-The points on a horizontal line have the same x-coordinate.

Same x-coordinate is on a vertical line, not horizontal

mariarad [96]3 years ago
4 0

Answer:

A, B, and C

Step-by-step explanation:

A) We can see if this is a horizontal line if its slope is 0. Slope is change in y divided by change in x, so: slope = \frac{7-7}{3-(-2)} =\frac{0}{5} =0 . Thus, this is a horizontal line and the statement is correct.

B) Any equation of the form x = k, where k is a constant, will always be a straight line. Let's see if it goes through (-8, 3) by plugging in the values of -8 in for x and 3 in for y in the equation.

Clearly, we don't have a y, so we just put in the -8 for the x: -8 = -8. Since this is a true statement, we know that x = -8 does go through (-8, 3). So, this is a true statement.

C) We can see if this is a vertical line if its slope is undefined (for example, if the denominator is 0, it's undefined). Slope = \frac{5-(-7)}{0-0} =\frac{12}{0} = undefined. So, this is a vertical line and the statement is true.

D) As a basic fact, any point on a horizontal line will have the same y coordinate. However, their x coordinates may vary. Thus, the statement is false.

So, the answers are A, B, and C.

Hope this helps!

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Select the correct answer.
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Answer:

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An undefined slope means that the line is vertical and parallel to the y- axis.

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Step-by-step explanation:

The translations of the typical functions are

y = a(bx + c)  + d

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If a is between -1 and 1 , we have a vertical compressions or shrink.

If a is negative, we have a negative reflection across the x axis.

If b is greater than 1 or less than -1, we have a horizontal compression or shrink

If b is between -1 and 1, we have a horizontal stretch

If b is negative, we have a reflection about the y axis,

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Here in this problem, our parent function is x^3.

So I would do the following transformations.

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Answer:

51,111%

Step-by-step explanation:

We know that 45% have a dog but no cat.  While 23% have both a dog and a cat.

Then Pr(X has cat|X has dog) = Pr(X has dog and cat)/Pr(X has dog)

= Pr(X has dog and cat)/Pr(X has dog) = 0.23/0.45 = 0.51 ≈ 51,111%

The probability that a student’s family owns a cat if the family owns a dog is 51,111%

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