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meriva
3 years ago
5

What is the transformation (x,y)->(x,-y)

Mathematics
1 answer:
Lelechka [254]3 years ago
4 0

Answer:

<h2>It's a reflection across the x-axis.</h2>

Step-by-step explanation:

(x, y) → (x, -y)

It's a reflection across the x-axis.

<em>The reflection of the point (x,y) across the x-axis is the point (x,-y).</em>

You might be interested in
4x + 6y - z=-18<br> 3x +2y - 4z = -24<br> - 5x + 3y + 2z = 15<br> find x y and z
Anna71 [15]

Answer:

x = -2, y = -1, z = 4

Step-by-step explanation:

4x + 6y - z=-18

z  = 18  + 4 x  +  6 y

3x +2y - 4z = -24

z  = 6  + (3x)/ 4  +  y /2

- 5x + 3y + 2z = 15

z = 15/2 + (5x)/2 - (3y)/2

18  + 4 x  +  6 y = 6  + (3x)/ 4  +  y /2  = 15/2 + (5x)/2 - (3y)/2

x = -22y/13 - 48/13

4(-22y/13 - 48/13) + 6y - (15/2 + (5(-22y/13 - 48/13))/2 - (3y)/2) = -18

Compute the output value of the variables x and y with respect to the input values of x, y, and z coefficients.

4 0
3 years ago
One number is seven more than twice another . If their sum is decreased my ten the result is twelve. Find the numbers
Rainbow [258]

Answer:

5, 17

Step-by-step explanation:

For this problem, you need to create a system of equations.

We can name one number x and the other y.

First equation: 2x + 7 = y

Second equation: x + y - 10 = 12, or x + y = 22.

We know y = 2x + 7, so we can substitute that into the second equation.

x + 2x + 7 = 22.

3x = 15

x = 5.

Plug x back into the first equation:

2 · 5 + 7 = y.

y = 10 + 7

y = 17.

3 0
3 years ago
The formula for electrical power (P, in watts) is where V is the voltage in volts and R is the resistance in ohms. For a particu
bazaltina [42]

Answer: 4 V

Step-by-step explanation:

The formula for electrical power P is:

P=\frac{V^{2}}{R}

Where:

P=0.5 W is the water heater electrical power

V is he water heater voltage

R=32 \Omega is the electrical resistance

Isolating V:

V=\sqrt{PR}

V=\sqrt{(0.5 W)(32 \Omega)}

Hence:

V=4 V

8 0
2 years ago
14 fewer than 12 times the<br> number of people in my<br> family is 46.
Galina-37 [17]

Answer:

538

Step-by-step explanation:

12 times 46 is 552 then 552 minus 14 is 538

:D

3 0
3 years ago
<img src="https://tex.z-dn.net/?f=32%2F8%20%3D%2040%2Fh" id="TexFormula1" title="32/8 = 40/h" alt="32/8 = 40/h" align="absmiddle
natka813 [3]
If you are solving for h the answer is 10
First you reduce the fraction with 8 so your get
4=40/h
Then you multiply both sides by h and you get
4h=40
After that you divide both sides by 4
And your answer is
h=10
3 0
3 years ago
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