Figure B: a reflection across the y-axisFigure a 180° rotation around the origin

Answers

Answer 1

Answer: Since I can't see the figure on the coordinate plane, I can't give you exact coordinates for you to plot to get Figure B or Figure C. But I can tell you the transformation rules for reflection across the y-axis and the 180 rotation around the origin.

Rule for reflection across y-axis
(x, y) $\rightarrow$ (-x, y)
For example: Point B in a sample figure has the coordinate point of (1,2) would have a point of (-1, 2) when reflected across the y-axis.

Rule for rotating 180 degrees
(x, y) $\rightarrow$ (-x, -y)
For example: Point C in a sample figure has the coordinate point of (3, 4) would have a point of (-3, -4) when rotating 180 degrees around the origin.

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50 BIG POINTS! Please help me on 5 questions!
1) y = 5x + 8Does the equation represent a direct variation?

The point where the two axes intersect (0,0).

Answers

The point where the two axes intersect (0,0) it's the point of origin.

That's the "Origin of coordinates", or simply the 'origin'.

Michelle has $12.30 in her purse in 1 cent 5 cent and 25 cent coins. if she has an equal number of each coin type how many coins does Michelle have in her purse?

Answers

$x-number\ of\ each\ coin\ type\n \n0.01+0.25+0.05=0.31\n \n 12.30:0.31=39.6774193548\n \nI\ think\ it \ should\ be\ \ \ \ \$12.40\n \n12.40:0.31=40\ \ \ \Rightarrow\ \ \ 40\cdot3=120\n \nAns.\ Michelle\ have\ in\ her\ purse\ 120\ coins .$

48 quarters is $12
5 nickels is .25
5 pennies is .5
the total is $12.30

What is the product of 4/5 and 8

Answers

The answer is 6 1/5. Look at the picture for an explanation

Please help me with this.A rectangular field is 65
meters wide and
105
meters long.
Give the length and width of another rectangular field that has the same perimeter but a smaller area.

Answers

First, let's get the perimeter of the rectangle:
$P=2W+2L$
$P=130m+210m$
$P=340m$
Then, let's get the area of the bigger one:
$A=WL$
$A=65m*105m$
$A=6825m^2$

Then let's try using a rectangle with a smaller ratio:
$P=100m+240m$
$P=340m$
Then:
$A=50m*120m$
$A=6000m^2$

If you used a square:
$P=170+170$
$P=340$
$A=WL$
$A=85^2$
$A=7225$

There you have it. A rectangle with a smaller area with the same perimeter.
What does it show? The smaller the difference you get from width and length, the larger the area is.

Well the L and the W could be 75 and 95
Because 75 + 75 + 95 + 95= 340
And 75 x 95= 7125
Same Perimeter, different Area
Glad to Help!

Help question in picture