Given:
M is the midpoint of AB.
M(2,0) and A(-3, 3).
To find:
The coordinates of point B.
Solution:
Midpoint formula:

Let the coordinates of point B are (a,b). Then, using the midpoint formula, we get

On comparing both sides, we get




And,




Therefore, the coordinates of point B are (7,-3).
Answer:
Graph B
Step-by-step explanation:
the "x" and "y" represent 
so therefore, it's
,
,
, 
you would start at (0,0) or the origin
and count over one and up one, or however many units the fraction/chart tells you to count up
Answer:
The percentile that corresponds to an IQ score of 115 is 34.13 %
Step-by-step explanation:
Here, we want to find the percentile that corresponds to an IQ score of 115.
To calculate this percentile, we start with making observations. From the question, we are told that the mean score is 100 while the standard deviation is 15.
Now we want to find the percentile for a score if 115. For a score of 115, we can see that the difference between this score and the mean is 15 which is exactly equal to the standard deviation.
What this means is that the score is within +1 SD of the mean.
For a score of within +1 SD of the mean, the percentile is 34.13%
A score at the mean is the 50th percentile, a score which is 1 SD above or below the mean has a percentile value of 34.13%
Please, I will like you to check the attachment to see how percentiles are valued given the number of standard deviations a particular value is from the mean.
Answer: The correct answer is Choice D, (5, 7).
First, we need to identify the slope from A to B.
It will be -5/-5. In other words, to go from A to B, we move down 5 spaces and left 5 spaces.
If we are going to divide the segment, we are not going to move all 5 spaces in each direction.
Since we are looking for a 2:3 ratio, we are only moving 2 out of the total of 5 spaces. It is 2 over 5, because 2 + 3 makes a total of 5.
Therefore, we only move down 2 and left 2 spaces from Point A. That will put us at the point (5, 7).