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Alex
3 years ago
14

Find the equation of the straight line passing through the points (2,-4) and (1,0)

Mathematics
1 answer:
myrzilka [38]3 years ago
4 0

Answer:

4x + y = 4

Step-by-step explanation:

Firstly calculate your gradient

;Gradient = (-4 - 0)/(2 - 1)

;Gradient = -4

Then use the formula;

y - y(y - coordinate of any of the two points given) = Gradient(x - x(x - coordinate of any of the two points given but must be from the same point as that you used in your y - coordinate))

; y - (-4) = -4(x - 2)

; y + 4 = -4x + 8

;Equation of the line..,

4x + y = 4

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I REALLY NEED HELP, ILL MEDAL!!!!
lara31 [8.8K]
Well, first of all, the first statement  (ABC = ADC) looks like it just says
that the two halves of the little square ... each side of the diagonal ...
are congruent.  That's no big deal, and it's no help in answering the
question.

The effect of the dilation is that all the DIMENSIONS of the square
are doubled ... each side of the square becomes twice as long.

Then, when you multiply (length x width) to get the area, you'd have

           Area = (2 x original length) x (2 x original width)

and that's
the same as      (2 x 2) x (original length x original width)

                        =     (4)  x  (original area) .


Here's an easy, useful factoid to memorize:

-- Dilate a line (1 dimension) by 'x' times . . . multiply the length by  x¹

-- Dilate a shape (2 dimensions) by 'x' . . . multiply area by  x²

-- Dilate a solid (3 dimensions) by 'x' . . . multiply volume by  x³

And that's all the dimensions we have in our world.
_______________________________

Oh, BTW . . .

-- Dilate a point (0 dimensions) by 'x' . . . multiply it by  x⁰  (1)

5 0
2 years ago
Hello! My brother thinks that 5/6 times 3/5 is 15 on his homework, but he just wants to make sure. does anyone know that using c
Mamont248 [21]

Answer:

it is 5/6

Step-by-step explanation:

7 0
2 years ago
Read 2 more answers
Expressions equivalent to 6x+4
stiv31 [10]
2(3x+2) I couldn’t find any other ones, your best bet would be to go into decimals or fractions if you want to find more.
6 0
3 years ago
Create and evaluate an expression that shows "the quotient of eight raised to the power of two and four, decreased by six."
AnnyKZ [126]

((8^2)/4)-6 = (64/4)-6 = 16-6 = 10
5 0
3 years ago
Y = 4x + 6
OlgaM077 [116]

Answer:

A

Step-by-step explanation:

y=4x+6

y=6-4x

y=12

y=4x+6

12=4x+6

12-6=4x

6/4=4x/4

x=3/2

5 0
2 years ago
Read 2 more answers
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