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3 years ago

Find the value of y picture *****

Mathematics

1 answer:

77julia77 [94]3 years ago

3 0

I think its 54 too soo

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Please help me<br> Show your work

GrogVix [38]

<u>ANSWER TO PART A</u>

The given triangle has vertices $J(-4,1), K(-4,-2),L(-3,-1)$

The mapping for rotation through $90\degree$ counterclockwise has the mapping

$(x,y)\rightarrow (-y,x)$

Therefore

$J(-4,1)\rightarrow J'(-1,-4)$

$K(-4,-2)\rightarrow K'(2,-4)$

$L(-3,-1)\rightarrow L'(1,-3)$

We plot all this point and connect them with straight lines.

ANSWER TO PART B

For a reflection across the y-axis we negate the x coordinates.

The mapping is

$(x,y)\rightarrow (-x,y)$

Therefore

$J(-4,1)\rightarrow J''(4,1)$

$K(-4,-2)\rightarrow K''(4,-2)$

$L(-3,-1)\rightarrow L''(3,-1)$

We plot all this point and connect them with straight lines.

See graph in attachment

7 0

3 years ago

Find the value of this expression if x = 7 and y= -2<br> xy^2/9

jeka94

7(−2)^2 /9

= 28 /9

5 0

3 years ago

Read 2 more answers

Which fraction is equivalent to 2/7 out of these 9/27 4/9 7/2 10/35

olganol [36]

9/27 is equivalent to 2/27

6 0

3 years ago

Read 2 more answers

Which graph represents a line function?

UkoKoshka [18]

Answer:

there's one graph I don't see the others

5 0

3 years ago

URGENT- I'll give 20 points

egoroff_w [7]

Answer:

i think its c

Step-by-step explanation:

so sorry if its wrong

3 0

3 years ago