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Karolina [17]
3 years ago
6

A line passes through the points (8, – 7) and (6, – 3). What is its equation in slope-intercept form?

Mathematics
1 answer:
mario62 [17]3 years ago
4 0

Answer:

y = − 2 x + 9

Step-by-step explanation:

Write in slope-intercept form,  y = m x + b .

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Can anyone plzzzz help me with this question of linear equation in two varaiable plzzzzzz... Its very important... Plz solve it
kotegsom [21]

That's not a linear system, but you have an awesome school system for giving you this problem.

\dfrac 5 y - \dfrac 2 x = \dfrac{13}6

Multiply by 6xy to clear the fractions.

30x - 12y = 13 xy

That's a second degree equation, also known as a conic.  That one happens to be a hyperbola.  

30x = y(13 x +12)

y = \dfrac{30x}{13 x + 12}

Let's clear the fractions from the second equation, multiplying out common denominator xy:

\dfrac {36} x - \dfrac {24} y = 1

36y - 24 x = xy

We are being asked to find the meet of two hyperbolas, so we expect two answers, a quadratic equation.

Substituting,

36 \left( \dfrac{30x}{13 x + 12} \right) - 24 x = x \left( \dfrac{30x}{13 x + 12} \right)

36(30x) -24 x(13x + 12) = 30x^2

1080 x - 312 x^2- 288 x = 30x^2

x(792 - 342 x)= 0

x = 0 \textrm{ or } x=792/342 = \dfrac{44}{19}

We have to rule out x=0 because it's in the denominator.

y = \dfrac{30x}{13 x + 12} = \dfrac{30(44/19)}{13(44/19)+12}

y = \dfrac{33}{20}

Answer: (44/19, 33/20)

8 0
3 years ago
The diagram shows a right-angled triangle.
Ratling [72]
Where is the diagram?
4 0
3 years ago
What inverse operation should be used to isolate the variable in the equation p − 20 = 50?
shutvik [7]

addition since inverse means opposite

3 0
3 years ago
Read 2 more answers
PLEASE HELP ASAP
lesya692 [45]

Answer:

x^2+14x+49    ( it could be polynomial because it has 3 terms and each term has a whole number and a coefficient)

Step-by-step explanation:

(x+7)^2

(x+7)(x+7)

x^2+7x+7x+49

x^2+14x+49

I am not sure it's a polynomial or not

7 0
4 years ago
4. In a scale drawing, the length of a
skad [1K]

Answer:

1ft=.33in

Step-by-step explanation:

For every 1ft in the room its .33 on paper.

.33333333333333333333333333333x18=6

5 0
3 years ago
Read 2 more answers
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