Answer:
7:6
Step-by-step explanation:
I simplified 14:12
When a shape is rotated, it must be rotated through a point.
- <em>90 degrees counterclockwise rotation negates the y-coordinates, and then swap the x and y-coordinates</em>
- <em>Chanel is incorrect</em>
The rule of 90 degrees counterclockwise is:
This means that:
- <em>The y-coordinate is negated</em>
- <em>Then the y and x coordinates are swapped</em>
<em />
However, Charlies transformation is incorrect.
- This is so because, the shape was not rotated, but instead it was reflected across the x-axis.
- Then, the shape was dilated
Using points L and Q
When L is reflected across the x-axis.
The rule is:
So, we have:
Next, it is dilated by 2.
The rule of this is:
So, we have:
From the diagram, the coordinate of Q is:
Same as the calculated point
Hence, Chanel is incorrect
Read more about transformation at:
brainly.com/question/11709244
For
(x-h)^2=4p(y-k)
vertex is (h,k)
distance from vertex to directix=p=distance from vertex to focus
|4p|=focal width
remember, focus is on the side of the parabola where it opens and directix is at the back
when p is negative, it opens down
when p is positive, it opens up
look at equation
-1/40(x-0)^2=(y-0)
times -40 to both sides
(x-0)^2=-40(y-0)
(x-0)^2=4(-10)(y-0)
vertex=(0,0)
p=-10,it's negative so it opens down
focus is 10 units below vertex (y direction)
focus=(0,-10)
diretix is 10 above
directix is y=10
focal width=|4p|=|4(-10)|=|-40|=40
vertex=(0,0)
focus=(0,-10)
directix is y=10
focal width=40 units
Circumference has the answer in square units.
Answer:
The x-intercept of the line is 4 minutes.
That 4 minutes gives the time when Shari will reach her home.
Step-by-step explanation:
The line 6x - 3y = 24......... (1), represents Shari's distance from home, y in blocks, on her run across town over time, x, in minutes.
So, at y = 0, from the above equation (1), we get 6x - 0 = 24, ⇒ x = 4.
Therefore, the x-intercept of the line (1) is 4 minutes.
That 4 minutes gives the time when Shari will reach her home and the distance between her and her home is zero blocks. (Answer)
