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4 years ago

The constant of proportionality is

Mathematics

1 answer:

ladessa [460]4 years ago

5 0

The constant of proportionality is the continuous ratio betwwen two variables.

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PLEASE HELP I DO NOT UNDERSTAND AT ALL AND SHOW YOUR WORK !!

Agata [3.3K]

Answer:

y intercept (-6,0), x-intercept (0,-8) : $y = \frac{-4}{3}x -8$

y intercept (0,-6), x-intercept (-2,0): $y = -3x -6$

y intercept (0,8), x-intercept (1.6,0): $y = -5x + 8$

y intercept (0,7), x-intercept (-1.4,0): $y = 5x + 7$

Step-by-step explanation:

y = mx + b

*note: b is the y intercept

1. y intercept (-6,0), x-intercept (0,-8)

$m = \frac{-8 - 0}{0 - (-6)}= \frac{-8}{6} = \frac{-4}{3}\\y = \frac{-4}{3}x + b\\y = \frac{-4}{3}x -8$

2.y intercept (0,-6), x-intercept (-2,0)

$m = \frac{0 - (-6)}{-2 - 0} = \frac{6}{-2} = -3\\y = -3x + b \\y = -3x -6$

3. y intercept (0,8), x-intercept (1.6,0)

$m = \frac{0 - 8}{1.6 - 0}= \frac{-8}{1.6} = -5\\y = -5x + b\\y = -5x + 8$

4. y intercept (0,7), x-intercept (-1.4,0)

$m = \frac{0 - 7}{-1.4 - 0} = \frac{-7}{-1.4}= 5 \\y = 5x + b\\y = 5x + 7$

6 0

3 years ago

I got all these wrong. Can someone please help!!!

anzhelika [568]

I need to get a high amount of points so pls dont delete comment

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3 years ago

Which shows a correct order to solve this story problem?

Naily [24]

Multiply $1.99 by 4 for the drinks . Then $1.20 by 4 for the muffins . Add both of the amounts from the drinks and muffins with the tip of $2.30 . Then subtract $30 from the other total . Then you have your answer .

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4 years ago

The side of square are 8, cm correct to the nearest centimetre. calculate the upper bound for area of the square.

KATRIN_1 [288]

i think you need to upload a picture! when what i’ve read, there should a diagram. thanks! reupload this with a photo attached.

7 0

3 years ago

-5(x – 3) = x + 27 What’s the answer to this

Leona [35]

-5(x – 3) = x + 27

multiply the bracket by -5

(-5)(x)=-5x

(-5)(-3)=15

-5x+15=x+27

Move +15 to the other side. Sign changes from +15 to -15.

-5x+15-15=x+27-15

-5x=x+27-15

-5x=x+12

Move +x to the other side. Sign changes from +x to -x.

-5x-x=x-x+12

-6x=12

Divide both sides by -6

-6x/-6=12/-6

Answer: x=-2

3 0

3 years ago