menu
Qammunity.org
Login
Register
My account
Edit my Profile
Private messages
My favorites
Ask a Question
Questions
Unanswered
Tags
Categories
Ask a Question
Sophia is dilating a figure. One of her pre-image points with coordinates (-3, 5) has an image with coordinates (-9, 15). If one of the other image points has coordinates (3, 1), what are the coordinates
asked
Nov 21, 2018
104k
views
2
votes
Sophia is dilating a figure. One of her pre-image points with coordinates (-3, 5) has an image with coordinates (-9, 15). If one of the other image points has coordinates (3, 1), what are the coordinates of its pre-image point?
Mathematics
college
Yeri
asked
by
Yeri
7.2k
points
answer
comment
share this
share
0 Comments
Please
log in
or
register
to add a comment.
Please
log in
or
register
to answer this question.
1
Answer
7
votes
The dilation factor Sophia is using appears to be
(image coordinate)/(original coordinate) = -9/-3 = 15/5 = 3
Then the problem tells us
(pre-image point)×3 = (3, 1)
so we conclude
(pre-image point) = (3, 1)/3 =
(1, 1/3)
Jasdeep Khalsa
answered
Nov 27, 2018
by
Jasdeep Khalsa
8.2k
points
ask related question
comment
share this
0 Comments
Please
log in
or
register
to add a comment.
← Prev Question
Next Question →
Related questions
asked
May 4, 2019
136k
views
Sophia is dilating a figure. one of her pre-image points with coordinates (-3, 5) has an image with coordinates (-9, 15). If one of the other image points has coordinates (3, 1), what are the coordinates
Nyi Nyi
asked
May 4, 2019
by
Nyi Nyi
7.8k
points
Mathematics
high-school
1
answer
0
votes
136k
views
asked
Mar 2, 2021
122k
views
If you know the length of the pre-image is 9 feet long with the center of dilation as A and dilating B by a scale factor of 3, what is the length of image AB?
Amy Brown Greer
asked
Mar 2, 2021
by
Amy Brown Greer
8.5k
points
Mathematics
high-school
1
answer
5
votes
122k
views
asked
Mar 2, 2023
7.3k
views
The image A"B"C" was created by dilating the pre-image by a scale factor of 1/3 about the origin,then reflected using the rule (x, y) - (-x, y). The coordinates of the image are A"(-2, -1) B"(0,3)and C"(4.
Samirah
asked
Mar 2, 2023
by
Samirah
8.2k
points
Mathematics
college
1
answer
5
votes
7.3k
views
Ask a Question
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.
9.4m
questions
12.2m
answers
Other Questions
How do you can you solve this problem 37 + y = 87; y =
What is .725 as a fraction
How do you estimate of 4 5/8 X 1/3
A bathtub is being filled with water. After 3 minutes 4/5 of the tub is full. Assuming the rate is constant, how much longer will it take to fill the tub?
Write words to match the expression. 24- ( 6+3)
Twitter
WhatsApp
Facebook
Reddit
LinkedIn
Email
Link Copied!
Copy
Search Qammunity.org