B is your awnser! sorry if im wrong my calc shows its without a - symbol
Answer:
Yes!
Step-by-step explanation:
The definition of Representative is
A representative sample is a group or set chosen from a larger statistical population or group of factors or instances that adequately replicates the larger group according to whatever characteristic or quality is under study
so your book is whats understudy and with that you'll know that yes, yes it is
Answer:

Step-by-step explanation:
Let the equation of the line be
where, 'm' is its slope and
is a point on it.
Given:
The equation of a known line is:

A point on the unknown line is:

Both the lines are perpendicular to each other.
Now, the slope of the known line is given by the coefficient of 'x'. Therefore, the slope of the known line is 
When two lines are perpendicular, the product of their slopes is equal to -1.
Therefore,

Therefore, the equation of the unknown line is determined by plugging in all the given values. This gives,

The equation of a line perpendicular to the given line and passing through (4, -6) is
.
There are many like
1(10)+10-1=19
18+1=19
30-11=19
15+4=19
Hope this help!!