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Agata [3.3K]
2 years ago
15

Write the equation x + 3y = -4 in slope-intercept form, and then find the slope and y-intercept.

Mathematics
1 answer:
katrin2010 [14]2 years ago
4 0

<u>Answer with step by step explanation</u>

To find the equation of the line from the given equation, you have to make y as the subject in the equation.

<u>Let us find now.</u>

x + 3y = -4

3y = -4 - x

3y = -x - 4

<em>Divide the whole equation by 3.</em>

y = -x/3 - 4/3

Therefore, <u>the equation of the line</u> is:

<u> y = -x/3 - 4/3</u>

And now we have to find the slope and the y - intercept of the line.

That is, we have to find the m & c of y = m x + c.

Here,

m ⇒ slope

c ⇒ y - intercept

So, to find it we have to find the values which were replaced with m & c.

<u>Let us find now.</u>

y = m x + c

y = <u>-x/3</u> <u> - 4/3</u>

Now it is clear that, <u>-1/3 & -4/3 are replaced with m & c</u> respectively.

Therefore,

slope ⇒<u> -1/3</u>

y - intercept ⇒<u> -4/3</u>

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Answer:

DEAC

Step-by-step explanation:

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2 years ago
A certain amount of money is divided among Rio, Kim and Leo in the ratio 5:7:3. If Leo gets Php 24,000.00, how much is the total
cricket20 [7]

Answer:

120,000

Step-by-step explanation:

Let's say Rio gets 5x, Kim gets 7x, and Leo gets 3x. In the ratio 5:7:3:1, x = 1

5x + 7x + 3x = total = 15x

3x = 24000

divide both sides by 3 to get x

x = 8000

15x = 8000*15 = 120000

5 0
2 years ago
-5x-(8-x)=12 how do I solve this problem.<br> show a step by step please in a balance problem
Alex

Answer:

x = -5

Step-by-step explanation:

to evaluate for x in this this question -5x-(8-x)=12

the firsst step, you would open the bracket with - then evaluate for the value of x

solution

-5x-(8-x)=12

-5x -8 + x = 12

combine the like terms

-5x + x = 12 + 8

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divide both sides by the coefficient of x

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5 0
3 years ago
Look at the image. (calculus)
mash [69]
<h3>Answer: Choice H)  2</h3>

=============================================

Explanation:

Recall that the pythagorean trig identity is \sin^2 x + \cos^2x = 1

If we were to isolate sine, then,

\sin^2 x + \cos^2x = 1\\\\\sin^2 x = 1-\cos^2x\\\\\sin x = \sqrt{1-\cos^2x}\\\\

We don't have to worry about the plus minus because sine is positive when 0 < x < pi/2.

Through similar calculations, \cos x = \sqrt{1-\sin^2x}\\\\

Cosine is also positive in this quadrant.

-------------

So,

\frac{\sqrt{1-\cos^2x}}{\sin x}+\frac{\sqrt{1-\sin^2x}}{\cos x}\\\\\frac{\sin x}{\sin x}+\frac{\cos x}{\cos x}\\\\1+1\\\\2

Therefore,

\frac{\sqrt{1-\cos^2x}}{\sin x}+\frac{\sqrt{1-\sin^2x}}{\cos x}=2

is an identity as long as 0 < x < pi/2

5 0
2 years ago
Read 2 more answers
I need help with number 9
Westkost [7]

Answer:

A) A dilation followed by a reflection.

Step-by-step explanation:

I went over this in class the other day.    (:

7 0
2 years ago
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