PLEASE HELP QUICKLY I WILL GIVE BRAINIEST IF U GET IT RIGHT math teacher assigns anywhere from 15 to 35 problems for homework three nights a week. Over the past three weeks, she recorded the number of problems in each assignment and made the box plot shown above. Which of the sets of numbers below matches the given box plot? A.

Number of Problems: 15, 17, 22, 22, 22, 25, 28, 30, 35

B.

Number of Problems: 15, 20, 22, 22, 23, 25, 28, 30, 35

C.

Number of Problems: 15, 20, 22, 22, 22, 25, 28, 30, 35

D.

Number of Problems: 15, 20, 22, 22, 22, 25, 26, 30, 35

options a,b,c are the right answer.

step-by-step explanation:

a linear parent function is always represented as y = x

if we write this function in the form of y=mx+c

⇒

or  

now if we plot a graph we will find these characteristics:

1) y intercept of the graph is zero so its a straight line passing through origin.

2) as we can see in both the forms of function written, values of x and y may be either positive or negative for the positive slope means points on the graph are either in first quadrant or in third one.

3) it's slope is one.

reduce the friction between its moving parts

step-by-step explanation:

in fact, by reducing the friction between the moving parts of the machine, it is possible to reduce the energy wasted due to this friction; therefore, more input energy is converted into useful work, and this will improve the efficiency of the machine.