Please help me answer these! Also, please provide steps so i can learn how to do so on my own!

#2 Experimental

Step-by-step explanation:

   In an observational study, we measure or survey members of a sample without trying to affect them.

   In a controlled experiment, we assign people or things to groups and apply some treatment to one of the groups, while the other group does not receive the treatment.

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.

answer

106 emergencies

step-by-step explanation: