107k views
3 votes
What is the distance between the points (-3, 1) and (1, 3)?

5/4
2/5
2

User Brad Wood
by
5.1k points

2 Answers

5 votes

Answer:

The distance is

3√10 or about 9.49 (rounded to nearest hundredth's place).

Step-by-step explanation:

The distance is

3

10

or about

9.49

(rounded to nearest hundredth's place).

Step-by-step explanation:

The formula for the distance for 3-dimensional coordinates is similar or 2-dimensional; it is:

d

=

(

x

2

x

1

)

2

+

(

y

2

y

1

)

2

+

(

z

2

z

1

)

2

We have the two coordinates, so we can plug in the values for

x

,

y

, and

z

:

d

=

(

2

1

)

2

+

(

3

(

3

)

)

2

+

(

4

(

5

)

)

2

(I wasn't sure if the

3

meant

3

or

3

, so I assumed it was

3

)

Now we simplify:

d

=

(

3

)

2

+

(

0

)

2

+

(

9

)

2

d

=

9

+

0

+

81

d=√90

d=3√10

If you want to leave it in exact form, you can leave the distance as

3√10

. However, if you want the decimal answer, here it is rounded to the nearest hundredth's place:

d≈9.49

Hope this helps!

User Carlos Jafet Neto
by
5.2k points
2 votes

Answer:

2/5

Step-by-step explanation:

Use the distance formula to determine the distance between two points.

User Vetrivel Mp
by
6.0k points
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