What is the reflection image of (5, -3) across the line y = -x?
2 answers:
Answer:
The point (5,-3) reflection image across the line is (3,-5).
Step-by-step explanation:
Given : Point (5,-3)
To find : The reflection image of given point across the line ?
Solution :
The reflection across the line is when both the coordinated changes its sign and position.
i.e, (x,y) across y=-x line became (-y,-x)
So, The point (5,3) reflection image across the line is (3,-5).
Refer the attached figure below to see the reflection.
Therefore, (5,-3)→(3,-5)
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Answer:
Step-by-step explanation:
We know that Mary has two twenty dollar bills, equaling to forty dollars in total.
So lets start on the first few things she buys, the berries, each costing 7.98 dollars and cents, since she only bought two, that means we need to multiply 7.98 by 2
==> 15.96 dollars and cents
Now we can take it out of forty.
$ 40.00
- $ 15.96
-------------------
$24.04
Now we only have 24.04 dollars and cents.
Now for the next few items, the peaches which costs 5.99 each, then since he only bought 3, we multiply 5.99 three times.
==> 17.97 dollars and cents
Now we can take it out of 24.04.
$24.04
- $ 17.97
--------------------
$6.07
Mary has 6 dollars and 7 cents in change.