An inverse function reverses (x, f(x)) to make it (f(x), x).
The 1st selection does that.
Given parameters:
Equation of the line is y = -
+ 8
Unknown:
Slope of line parallel to this line = ?
Slope of line perpendicular = ?
Solution:
A line parallel to this line will have the same slope with it.
A line perpendicular will have the negative inverse of this slope;
Slope of line = - 
Slope of line parallel to this line =
Slope of line perpendicular = negative inverse = -( -(
)) = 2
So, the slope of line parallel to this line is - 1/2 and that perpendicular is 2
Statistical questions: A, C, E, because they all talk about students, where B and D talk about adults and people in general. Frank just wants to know about students.
Given:
A right rectangular prism is packed with cubes of side length
inch.
Prism is packed with 15 cubes along the length, 6 cubes along the width, and 5 cubes along the height.
To find:
The volume of the prism
Solution:
Side length of each cube
inch.
15 cubes along the length, so length of prism is

6 cubes along the width, so width of prism is

5 cubes along the height, so height of prism is

Now,
Volume of rectangular prism is





Therefore, the correct option is B.