Any help on this question?

Step-by-step explanation:

12 are 6th graders

18 are 7th graders

6 are eight graders

total=36

7th graders are 50%

18?%

36100

18*100/36=50

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.

boxplot