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Igoryamba
3 years ago
13

Find the point-slope equation for

Mathematics
1 answer:
Georgia [21]3 years ago
7 0

Answer:

The answer to your question is  y = -2x + 9

Step-by-step explanation:

A (9, 9)

B (-2, 13)

Process

1.- Find the slope

   m = \frac{y2 - y1}{x2 - x1}

   m = \frac{13 + 9}{-2 - 9}

  m = \frac{22}{-11}

         m = - 2

2.- Find the line equation

         (y - y1) = m (x - x1)

          y + 9 = -2 (x - 9)               y + ? = [  ] ( x + [ ])

          y + 9 = - 2x + 18

          y = - 2x + 18 - 9

          y = -2x + 9

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Triangle ABC is transformed to obtain triangle A′B′C′:
Lisa [10]

Answer:

Option C is right.

Step-by-step explanation:

Given is a graph with two triangles marked on it.

Triangle ABC is in the I quadrant with vertices (2,2) (2,10) and (8,12)

Triange A'B'C' is in the III quadrant with vertices (-1,-1), (-1,-5) and (-4,-6)

On comparison we find corresponding side of AB is A'B'

Length of AB = 8 and Length of A'B' = 4.

Hence A'B'C' is obtained by dilating ABC by a scale factor of 1/2.

Now since moved to III quadrant from I quadrant we find that there is a rotation of triangle ABC about the origin.  The degree of rotation is 180 degrees.

Hence A'B'C' is obtained by dilating ABC by a scale factor of 1/2 and then rotating it about the origin by 180 degrees

8 0
3 years ago
A box contain 9 novels, 7 biographies, and 5 reference books. Alyssa randomly chooses a book, then she randomly chooses another
Tanzania [10]
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5 0
3 years ago
20% of which number is 30?<br> A. 1.5<br> B. 6<br> c. 15<br> D. 150<br> E. 600
MrMuchimi
B is the correct answer
6 0
3 years ago
Read 2 more answers
<img src="https://tex.z-dn.net/?f=%2816%20%2B%204%29%20%5Ctimes%209%20%3D%20%2816%20%5Ctimes%20x%29%20%2B%20%284%20%5Ctimes%20y%
RSB [31]
Isolate the variable by dividing each side by factors that don't contain the variable.

x= 13/4 - y/4



If you are solving for x (only)
X = 45/4 - y/4

If you are solving for y (only)
Y= 45- 4x
6 0
3 years ago
Solve 16 = –3y – 5 for y. A. y = 5 B. y = 7 C. y = –5 D. y = –7
grigory [225]

Answer:

B. y = 7

Step-by-step explanation:

16=-3y-5

3y=-5-16

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y=21/3

Therefore y = 7

Hope it helps you

4 0
3 years ago
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