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V125BC [204]
3 years ago
13

Given the equation of the line y=−x−2, What is the equation of the image after a 270° rotation about the origin. Is there a rela

tionship (parallel, perpendicular, the same) between the equations of the image and preimage. The equation of the image is ___. They are ___ lines.
Mathematics
1 answer:
Vikentia [17]3 years ago
5 0
The equation is y = x + 2 and they are perpendicular lines.

A rotation of 270 degrees means that you turn 3/4 of the way around a circle. That would put the y-intercept at (0, 2) and the line would be going up instead of down.
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The endpoints of CD are C(–8, 4) and D(6, –6). What are the coordinates of point P on CD such that P is the length of the line s
Arturiano [62]
If you graph the end points C and D then graph the 4 points at the end it is difficult to tell which points are on CD without a line.  
Using the endpoints find the slope (change in y/ change in x) then substitute a point in to find the intercept.  
Slope = (-6-4)/(6- -8) = -5/7
Intercept equation (-6) = -5/7 (6) + b
b = -1.71428571429
Graphing the line shows only 2 points on the line (–2.75, 0.25) and <span>(0.75, –2.25)
I am confused by the part, "</span><span>P is the length of the line segment from D".  Were you given a length P to help you determine which point.  Using the distance formula to find the length from each point to D doesn't help determine which one is best with the information you have given.  The image shows the distances I calculated and the graphed points. 
I hope this helps!</span>

3 0
3 years ago
Read 2 more answers
Subtract 10y - 8 from By 8y– 3.
Kruka [31]

(8y - 3) - (10y - 8) # Add or subtract like terms

-2y + 5

Hope this helps!

8 0
3 years ago
Read 2 more answers
a globe has a diameter of 12 inches. it fits inside a cube-shaped box that has a side length of 12 inches. What is the volume, r
baherus [9]

Answer:

823.68  inches

Step-by-step explanation:

7 0
3 years ago
The flanagans are having their fifth child. All of their childern are athletically gifted,so the youngest child is bound to be a
ioda

Answer: inductive argument.

Step-by-step explanation:

Deductive argument is a logical argument in which a conclusion is made upon the given premises which are assumed to be true.

inductive argument works on the basis of a series of observation and then bring it to frame a certain conclusion.

Here, Flanagans are considering the observation they made by previous children (i.e. they are athletically gifted) and applying the same on the new one by saying "youngest child is bound to be athletically gifted as well.".

So it is of-course an inductive argument.

5 0
4 years ago
What is the simplified form of the square root of 45?
Elodia [21]

Answer:

3sqrt(5)

Step-by-step explanation:

sqrt(45)

sqrt(9*5)

We know the sqrt(ab) = sqrt(a) sqrt(b)

sqrt(9) sqrt(5)

3sqrt(5)

6 0
3 years ago
Read 2 more answers
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