1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
ruslelena [56]
3 years ago
15

How does a reflection across the y-axis change the coordinates of a shape?

Mathematics
1 answer:
Dmitriy789 [7]3 years ago
8 0

Answer:

in (x,y), it becomes (-x,y)

Step-by-step explanation:

You might be interested in
Can someone please explain how the answer is D
Kitty [74]

Step-by-step explanation:

Because the length of ST is calculated using pythagorean theorem:

{c}^{2}  =  {a}^{2}  +  {b}^{2}

Where the square of the hypotenuse is equal to the sum of squares of the other two sides of a right triangle. In this case, the hypotenuse is ST and the other two sides are distances between S and T over the X and Y axis. Those are easily calculated:

x =  |sx - tx|  \\ y =  |sy - ty|

Where x is the distance between S and T over X axis and Y distance over Y axis, sx and tx are X coordinates of S and T, sy and ty are Y coordinates of S and T.

Using that formula, you get that y = 17 and x = 8.

Back to the pythagorean theorem, if we put those number in the formula of the pythagorean theorem, we get something like this:

{c}^{2}  =  {x}^{2}  +  {y}^{2} \\  {c}^{2}  =  {8}^{2}  +  {17}^{2} = 64 + 289  \\  {c}^{2}  = 353 \\ c =  \sqrt{353}

And finally, the correct answer is in fact 353.

3 0
3 years ago
What is the probability of spinning green?
professor190 [17]
0.25 because there is 4 colours and obviously red is 0.75 percent and green and blue can’t be lower than 0.5 cuz that’s for yellow and there’s no 0%

(That makes no sense but it’s 0.25%)
3 0
3 years ago
Find the coordinates if the midpoint of a line segment with endpoints (-3,4) and (7,9).
svetoff [14.1K]
Using the midpoint formula 
\frac{ x_{1}+ x_{2}  }{2},  
 \frac{ y_{1}+  y_{2}  }{2}
\frac{-3+7}{2},
 \frac{4+9}{2}
\frac{4}{2},
 \frac{13}{2}
(2,6.5)
So, your answer would be (2,6.5).
5 0
3 years ago
Read 2 more answers
In science class, Priscilla heats water and measures the temperature of the water every 2 minutes\or data are shown in the table
Dima020 [189]

Answer:

  37.5 °C

Step-by-step explanation:

The temperature appears to be increasing linearly at the rate of 5 °C in 2 minutes, or 2.5 °C per minute.

1 minute after 4 minutes, when the temperature is 35 °C, we expect it to be 2.5 °C higher, or 37.5 °C.

8 0
3 years ago
How do I get the answer to this math problem n + 7 < -3 what is the formula for the math problem
laiz [17]
If I understand the question, you have to get n alone. in this case, you have to subtract 7 from both sides, resulting in n (is less than) -10
8 0
3 years ago
Other questions:
  • Write the SLOPE-INTERCEPT FORM equation given a slope of -1/2 and the point (6,-1).
    6·1 answer
  • What is the difference between (-4) - 6
    11·2 answers
  • Solve for x and show your work 2x=36 x= ?
    8·2 answers
  • HELPPPP ME IM THE WORST IN MATH -_-
    7·1 answer
  • Find the coordinates of the midpoint of line HX.. . H(0,0), X(8,4)
    13·1 answer
  • Which platonic solid has four faces that are equilateral triangles
    13·2 answers
  • What is the greatest common factor of 42 70 and 84
    6·1 answer
  • 1) Jada made 6 cups of blueberry jam and divided
    5·2 answers
  • Need help with some practice questions since all are different types I'm asking alot sorry!​
    9·1 answer
  • Expand and fully simplify 3(x + 1) + 2(3x + 4)​
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!