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aalyn [17]
3 years ago
15

Which of the following describes how to graph the line whose equation is y = x - 1?

Mathematics
1 answer:
jenyasd209 [6]3 years ago
7 0
You would need to substitute a number for y. I would probably put 0 for y which would then give you x. 

y = 0

x = 1

Then you can easily graph the point. :)
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3 years ago
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Three of the four vertices of a rectangle are located at (4, 2), (7, 2) and (4, 8). a. What are the coordinates of the missing v
34kurt

Answer:

a) The coordinates of the missing vertex = (7, 8)

b) Area = 18 square units

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Step-by-step explanation:

a) We know three of the four vertices:

A: (4, 2)           C ______ D(?)

B: (7, 2)               |             |

C: (4, 8)           A |______| B  

To find the coordinates of the missing vertex we need to calculate the distance in the x-direction from point A to point B:

B_{x} - A_{x} = 7 - 4 = 3                    

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Now, to find the coordinate in "y" we need to calculate the distance in the y-direction between point C and point A:

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Then, the distance of point D from point B in the y-direction is:

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Therefore, the coordinates of the missing vertex (point D) are:

D = (D_{x}, D_{y}) = (7, 8)    

b) The area of the rectangle is:

a = (B_{x} - A_{x})*(C_{y} - A_{y}) = 3*6 = 18 units^{2}

The perimeter is given by:

p = 2*(3 + 6) = 18 units

I hope it helps you!          

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Answer:

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