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alexandr1967 [171]
3 years ago
8

Ok theres two questions I need the equation and answer. Please help!!

Mathematics
2 answers:
Makovka662 [10]3 years ago
7 0

Answer:

1)   y = -2/3x - 4

2)  y = -3x + 7

Step-by-step explanation:

1)  Plug in the slope (m) and y intercept (b) into the equation

     y = mx + b

     y = -2/3x - 4

2)  Find  the slope (m)  m = y₂ - y₁/ x₂ - x₁

                                      m =  4 - (-2)/1 - 3

                                      m =  6/-2

                                     m = -3

   Then find the y intercept (b) by plugging x, y and m into y = mx + b (you can choose either point given

4 = -3 ( 1) + b

4 = -3 + b

Add 3 to both sides

7 = b

So now you know  m = -3 and b = 7  

Plug into y = mx + b

                y = -3x + 7

miv72 [106K]3 years ago
3 0
Slope Intercept: Y=mx + b

1. Y= -2/3x + -4

2. Y= 1/3x + 7
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The coordinates of the vertex that A maps to after Daniel's reflections are (3, 4) and the coordinates of the vertex that A maps to after Zachary's reflections are (3, 2)

<h3>How to determine the coordinates of the vertex that A maps to after the two reflections?</h3>

From the given figure, the coordinate of the vertex A is represented as:

A = (-5, 2)

<u>The coordinates of the vertex that A maps to after Daniel's reflections</u>

The rule of reflection across the line x = -1 is

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<u>The coordinates of the vertex that A maps to after Zachary's reflections</u>

The rule of reflection across the line y = 2 is

(x, y) ⇒ (x, -y + 4)

So, we have:

A' = (-5, -2 + 4)

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A' = (-5, 2)

The rule of reflection across the line x = -1 is

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So, we have:

A'' = (5 - 2, 2)

Evaluate the difference

A'' = (3, 2)

Hence, the coordinates of the vertex that A maps to after Zachary's reflections are (3, 2)

Read more about reflection at:

brainly.com/question/4289712

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