What are the steps to do 4z−(−3z)

2 answers:

7 0

4z-(-3z)

Remember, two negatives equal a positive. Since there are two subtraction signs, you would add 4z and 3z together.

-,-= +

4z+3z

4+3= 7

7z is the simplest answer.

<em>I hope this helps!
</em>~kaikers

Molodets [167]4 years ago

5 0

4z - ( - 3 z)

= 4 z + 3 z = 7 z

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Point A (6,2) is translated using the vector <-5,2>. Where is the new point located?

Dominik [7]

<h3>Answer: (1,4)</h3>

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Explanation:

The notation <-5,2> is the same as writing the translation rule $(x,y) \to (x-5,y+2)$

It says: move 5 units to the left and 2 units up

The point (6,2) moves to (1,2) when moving five units to the left. Then it ultimately arrives at (1, 4) after moving 2 units up. You could move 2 units up first and then 5 units to the left later on, and you'd still arrive at (1, 4). In this case, the order doesn't matter (some combinations of transformations this won't be the case and order will matter).

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Or you could write out the steps like so

$(x,y) \to (x-5, y+2)\\\\(6,2) \to (6-5, 2+2)\\\\(6,2) \to (1, 4)\\\\$