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2 years ago

Find the slope of (5,-6) and (-1,8)

Mathematics

1 answer:

jeka57 [31]2 years ago

5 0

the slope is -14/6 or the simplified version is -7/3

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y=−8x−3 x+y=7 Is (3,4)(3,4)left parenthesis, 3, comma, 4, right parenthesis a solution of the system? Choose 1 answer: Choos

kirill [66]

Given:

The system of equation is

$y=-8x-3$

$x+y=7$

To find:

Whether (3,4) is a solution of the given system or not.

Solution:

We have,

$y=-8x-3$ ...(i)

$x+y=7$ ...(ii)

Putting the value of y in (ii) from (i), we get

$x+(-8x-3)=7$

$x-8x-3=7$

$-7x=7+3$

$-7x=10$

Divide both sides by -7.

$x=\dfrac{10}{-7}$

$x=-\dfrac{10}{7}$

Putting $x=-\dfrac{10}{7}$ in (i), we get

$y=-8\times (\dfrac{-10}{7})-3$

$y=\dfrac{80}{7}-3$

$y=\dfrac{80-21}{7}$

$y=\dfrac{59}{7}$

So, the only solution of the given system is $\left(-\dfrac{10}{7},\dfrac{59}{7}\right)$ .

Hence, (3,4) cannot be a solution of given system, Hence the correct option is B.

7 0

3 years ago

Read 2 more answers

How do i <br> Evaluate 4!.

Wewaii [24]

Hello there!

The formula is
N! = n(n -1)(n - 2)
Now all we have to do is replace N by 4
N! = 4(4-1)(4-2)
= (4)(3)(4-2)
= (12)(2)
= 24
Here you go, the answer is : 24

I hope this answer help! Good luck with your studies.

5 0

4 years ago

Describe how the transformed function below is obtained from its parent function. y=1/x -5

cluponka [151]

Answer:

3.5y

Step-by-step explanation:

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3 years ago

A student mixes two substances in a large beaker. After two hours, the student sees that the substances have separated again.

musickatia [10]

Answer:

densities

Step-by-step explanation:

6 0

3 years ago

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Which is an equation for the line that contains (-2, 5) and has a slope of -7 ?

Dmitriy789 [7]

<h3><em> </em><em>Let (-2 , 5) be (x1 , y1)</em></h3><h3 /><h3><em> </em><em>Slope (m) = -7</em></h3><h3 /><h3><em>Using this : (y - y1) = m(x - x1) , find the equation of line..</em></h3>

3 0

3 years ago

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