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kati45 [8]
3 years ago
14

PLEASE, I'M STUCK! Sketch the graphs of x = 7 and y=-1. Then find the point at which the two graphs intersect.

Mathematics
1 answer:
ycow [4]3 years ago
3 0
Hello!

I have attached three graphs. The first one for x = 7, second one for y = -1, and third one with both x = 7 and y = -1 on the same graph. 

Hope this helps :))

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12. The y-axis is NOT the line of reflection for which pair of points?
Rzqust [24]

Option D: B(2,-2) \rightarrow B^{\prime}(2,2) is the pair of points which does not have y - axis as the line of reflection.

Explanation:

The translation rule to reflect the pair of points across the y - axis is given by

(x,y)\implies (-x,y)

<u>Option A</u>: B(3,-8) \rightarrow B^{\prime}(-3,-8):

Let us translate the coordinate B(3,-8) across y - axis using the translation rule (x,y)\implies (-x,y), we get,

(3,-8)\implies (-3,-8)

Thus, we get, B(3,-8) \rightarrow B^{\prime}(-3,-8)

Hence, the pair of points B(3,-8) \rightarrow B^{\prime}(-3,-8) has the line of reflection across y - axis.

Therefore, Option A is not the correct answer.

<u>Option B</u>: B(-6,2) \rightarrow B^{\prime}(6,2):

Let us translate the coordinate B(-6,2) across y - axis using the translation rule (x,y)\implies (-x,y), we get,

(-6,2)\implies (6,2)

Thus, we get, B(-6,2) \rightarrow B^{\prime}(6,2)

Hence, the pair of points B(-6,2) \rightarrow B^{\prime}(6,2) has the line of reflection across y - axis.

Therefore, Option B is not the correct answer.

<u>Option C</u>: B(5,-7) \rightarrow B^{\prime}(-5,-7):

Let us translate the coordinate B(5,-7) across y - axis using the translation rule (x,y)\implies (-x,y), we get,

(5,-7)\implies (-5,-7)

Thus, we get, B(5,-7) \rightarrow B^{\prime}(-5,-7)

Hence, the pair of points B(5,-7) \rightarrow B^{\prime}(-5,-7) has the line of reflection across y - axis.

Therefore, Option C is not the correct answer.

<u>Option D</u>: B(2,-2) \rightarrow B^{\prime}(2,2):

Let us translate the coordinate B(2,-2) across y - axis using the translation rule (x,y)\implies (-x,y), we get,

(2,-2)\implies (-2,-2)

Thus, we get, B(2,-2) \rightarrow B^{\prime}(-2,-2)

Hence, the pair of points B(2,-2) \rightarrow B^{\prime}(2,2) does not has the line of reflection across y - axis.

Therefore, Option D is the correct answer.

5 0
3 years ago
Find the value of x. Give reasons to justify your solution. b ∈ ac, d ∈ fa
tatiyna

Answer:

x = 27

Step-by-step explanation:

∠ ABD and ∠ BDE are alternate angles and are congruent, then

∠ BDE = 72°

∠ ADB + ∠ BDE + ∠ EDF = 180° ( sum of angles on a straight line ), that is

2x + 72 + 2x = 180

4x + 72 = 180 ( subtract 72 from both sides )

4x = 108 ( divide both sides by 4 )

x = 27

6 0
3 years ago
Let V=(2,8) and W=(-1,-4)
Tcecarenko [31]

Answer:

B, and W are correct i think

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
What is the answer to <br><img src="https://tex.z-dn.net/?f=%20%5Cfrac%7Bv%7D%7B8%7D%20%20%3D%2010" id="TexFormula1" title=" \fr
Shkiper50 [21]

Answer:

80

Step-by-step explanation:

\frac{v}{8} =10\\v=10*8\\v=80

7 0
3 years ago
Read 2 more answers
Represent root 3 on the number line​
Vedmedyk [2.9K]

Answer:

first represent root 2

6 0
3 years ago
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