Which of these describes the transformation of AB with points A(-9,4) and B(2,-5) to A'B' with points A'(4,9) and B'(-5,-2)? Select all that apply.

(x , y) -> (y , -x) & rotation 90° clockwise

Step-by-step explanation:

The first one is pretty obvious : the values of x & y in the first point are the same in the second point but in reverse

And about the 90° rotation, just graph it

If you have any questions about the way I solved it, don't hesitate to ask me in the comments below =)

3

step-by-step explanation:

in standard form:

a= dictionaries

b= maps

you have to buy 3 dictionaries, so put a 3 next to the a (dictionaries) so that you can multiply them by each other.

a3+b= 60 (the amount of money you have)

we already know the cost of a=15 so replace a with $15

($15 x 3)+b=60

multiply 15 and 3 to get $45 and replace it with $45

45+b=60

and then replace b with 15 to get the total:

45+15=60

that means you have $15 left after buying 3 dictionaries.

15 divided by the cost of a map ($5) equals 3.

so you can buy 3 maps.

sorry if it was confusing!