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2 years ago

What is the equation of this line? y=1/2x−3 y=−1/2x−3 y=−2x−3 y=2x−3

Mathematics

1 answer:

butalik [34]2 years ago

7 0

Answer:

y=1/2x-3

Step-by-step explanation:

starting at the origin, you go down 3 to reach the line/point, hence the -3. Then you go up 1 over the right 2 to get reach the point, hence the 1/2.

It would not be negative 1/2 because we didn't go down 1 to the right.

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Y varies inversely with x. When x = 3 then y = 5. Write a function to represent this relationship.

Mariulka [41]

Answer:

<em>The function to represent this relationship will be: $y= \frac{15}{x}$ </em>

Step-by-step explanation:

$y$ varies inversely with $x$ . That means......

$y= \frac{k}{x}..............................(1)$

where $k$ is a proportional constant.

Given that, when $x=3$ , then $y=5$

Plugging these values into the above equation, we will get.....

$5=\frac{k}{3}\\ \\ 5(3)=\frac{k}{3}(3)\\ \\ 15=k$

Now plugging this $k=15$ into equation (1).....

$y= \frac{15}{x}$

So, the function to represent this relationship will be: $y= \frac{15}{x}$

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3 years ago

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satela [25.4K]

Answer:

9.42 or 3pi

Step-by-step explanation:

equation of a circle is 2*pi*r

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3 years ago

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