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3 years ago

2. Which statement best describes the relationship between the two given equations?

Mathematics

2 answers:

Hoochie [10]3 years ago

6 0

Answer:

Step-by-step explanation:

2x + 4y = 6

4y = -2x + 6

y = -1/2x + 3/2.....slope = -1/2, y int = 3/2

x - 2y = 3

-2y = -x + 3

y = 1/2x - 3/2....slope = 1/2, y int = -3/2

different slopes, different y int's.....means one solution <==

Morgarella [4.7K]3 years ago

3 0

The answer to your question is B

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Please help me<br> Show your work

GrogVix [38]

<u>ANSWER TO PART A</u>

The given triangle has vertices $J(-4,1), K(-4,-2),L(-3,-1)$

The mapping for rotation through $90\degree$ counterclockwise has the mapping

$(x,y)\rightarrow (-y,x)$

Therefore

$J(-4,1)\rightarrow J'(-1,-4)$

$K(-4,-2)\rightarrow K'(2,-4)$

$L(-3,-1)\rightarrow L'(1,-3)$

We plot all this point and connect them with straight lines.

ANSWER TO PART B

For a reflection across the y-axis we negate the x coordinates.

The mapping is

$(x,y)\rightarrow (-x,y)$

Therefore

$J(-4,1)\rightarrow J''(4,1)$

$K(-4,-2)\rightarrow K''(4,-2)$

$L(-3,-1)\rightarrow L''(3,-1)$

We plot all this point and connect them with straight lines.

See graph in attachment

7 0

3 years ago

Help me please 2-4x=x+16

Elina [12.6K]

2-4x=x+16
-5x=13

x=-2.6

5 0

3 years ago

What value of X makes the equation true -7x - (-5-x) = -9(2x-1) -1

Bond [772]

Answer:

x = 1/4

Step-by-step explanation:

-7x - (-5-x) = -9(2x-1) -1

-7x + 5 + x = -18x + 9 - 1

combine like terms:

-6x + 5 = -18x + 8

add 18x to each side of the equation:

12x + 5 = 8

subtract 5 from each side:

12x = 3

divide both sides by 12:

x = 3/12 = 1/4

5 0

3 years ago

Can someone help me please?

Alina [70]

Looking at the graph, trace your finger up from 10 on the x-axis. You will end up somewhere around 17.

Therefore, the approximate height of the tree after 10 years will be 17 feet.

5 0

3 years ago

Read 2 more answers

I need step by step please 3(x-2)^2+1=13

Romashka-Z-Leto [24]

Answer:

$x_{1} = 0. \: \: \: x_{2} = 4$

Step-by-step explanation:

$3(x - 2)^{2} + 1 = 3$

$3( {x}^{2} - 4x + 4) + 1 = 13$

${3x}^{2} - 12x + 12 + 1 = 13$

${3x}^{2} - 12x + 13 = 13$

${3x}^{2} - 12x = 0$

$x \times (x - 4) = 0$

$x = 0$

$x - 4 = 0$

$\boxed{\green{x_{1} = 0. \: \: \: x_{2} = 4}}$

7 0

2 years ago