The coordinates of prs are p(-3,2), R (2,5), s (0,0) which of the following could be p'r's' after a 270 degree rotation

1 answer:

3 0

Formula for 270 degree rotations:
(x,y) -----> (-y,x)

So....

p: (-3,2)----> (-2,-3)
r: (2,5)------>(-5,2)
s: (0,0) ------> (0,0)

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Evaluate −x+| y | when x=1/3 and y=−7/4. Write your answer as a fraction in simplest form.

Mama L [17]

Answer: = $\frac{17}{12}\quad \left(\mathrm{Decimal:\quad }\:1.41666\dots \right)$

Step-by-step explanation:

$-\frac{1}{3}+\left|-\frac{7}{4}\right|$

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3 years ago

Can anyone explain how to do this? I looked at the book and now I'm even more confused. 50 points

katrin [286]

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From the graph (see attached image below), we see that (0,-4) is the lowest point. This means y = -4 is the smallest y output possible, though we can't actually reach it because of the open circle at (0,-4). We can get any other larger y value. So the range is therefore: $(-4, \infty)$ meaning we start at -4 and head off to positive infinity. The curve parenthesis next to -4 the reader "exclude -4 as part of the range". There is an open hole or gap here. Another way to state the range is to write y > -4