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3 years ago

Help me pls i hope u have a good day

Mathematics

1 answer:

natka813 [3]3 years ago

5 0

Answer:

You just multiply by 5. the 1st one will be 15.

1:15

2:35

3:100

4:2.5

5a:1 to 6 or 1:6

5b: I have no idea what this one is sorry.

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Which relationship is a direct variation?

Setler79 [48]

Option A is the relationship which shows a direct variation.

Step-by-step explanation:

The direct variation is a relationship between two variables in which one is the multiple of the other. It is given by the relation

$\frac{y}{x}=k$

Option A:

For $x=2$ and $y=1$ ,

$\frac{y}{x}=\frac{1}{2}$

For $x=4$ and $y=2$ ,

$\frac{y}{x}=\frac{2}{4}= \frac{1}{2}$

Since, the constant k is equal for all the values of x and y in the table, this relationship is a direct variation.

Option B:

For $x=2$ and $y=4$ ,

$\frac{y}{x}=\frac{4}{2}= 2$

For $x=4$ and $y=16$ ,

$\frac{y}{x}=\frac{16}{4} =4$

Since, the values of constant k is not equal for all the values of x and y in the table, this relationship is not a direct variation.

Option C:

For $x=1$ and $y=3$

$\frac{y}{x} =\frac{3}{1} =3$

For $x=2$ and $y=5$

$\frac{y}{x} =\frac{5}{2}$

Since, the values of constant k is not equal for all the values of x and y in the table, this relationship is not a direct variation.

Option D:

For $x=1$ and $y=-1$

$\frac{y}{x} =\frac{-1}{1} =-1$

For $x=2$ and $y=2$

$\frac{y}{x} =\frac{2}{2} =1$

Since, the values of constant k is not equal for all the values of x and y in the table, this relationship is not a direct variation.

Thus, Option A is the relationship which shows direct variation.

7 0

4 years ago

Find the y-coordinate of point M. the midpoint of AB, for A(-3,3) and B(5,7)

Rufina [12.5K]

The y-coordinate of the midpoint, M of the segment AB described by; A(-3,3) and B(5,7) is; 5.

<h3>What is the y-coordinate of the point M which is the midpoint of AB, defined by; A(-3,3) and B(5,7).</h3>

It follows from the task content that the y-coordinate of the midpoint, M of AB defined by; A(-3,3) and B(5,7) is to be determined.

Hence, it follows from coordinate geometry that the y-coordinate of the midpoint is such that;

y = (y(1) +y(2))/2

y = (3 + 7)/2

y = 5.

Ultimately, the y-coordinate of the midpoint of AB; A(-3,3) and B(5,7) is; y =5.

Read more on midpoint of a line;

brainly.com/question/5566419

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7 0

2 years ago

Can somebody pls help me..

ale4655 [162]

If you solve for the vertex of the function, you would get (-3, -1). So I think it would be x = -3 and the function’s maximum value would be -1. Hope this helps!! :)

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3 years ago

Urgent !!!!What is the initial value of the exponential function shown on the graph?<br><br> On edge

Rama09 [41]

4 is the answer.............

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3 years ago

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What is the value of x?

Ludmilka [50]

Answer:

131

Step-by-step explanation:

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3 years ago