sofietyeweirdo
12.06.2021 •
Mathematics
Triangle ABC has vertices A (-2, 2), B (2, 4) and C (3, -1). What are the coordinates of A' after a dilation by a scale factor of 2.5?
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Ответ:
A’(-5,5)
Step-by-step explanation:
x’ = 2.5 * -2 = -5
y‘ = 2.5 * 2 = 5
Ответ:
Hey there! I'm happy to help!
We want to isolate the x so that we can see what it equals.
To do this, we use inverse operations on both sides of the equation. Doing this will cancel out numbers on the left side to show what x is equal to.
We add 1 to both sides.
2x-1+1=6+1
2x=7
We divide both sides by 2.
(2x)/2=7/2
x=7/2
Have a wonderful day! :D