HELP IM DOING A TEST Which of the following is the best definition of a unit rate? * A.) A ratio of something in comparison to another. O B.) A ratio of something per the total amount. C.) How much something goes up or down by. O D.) How much of something per 1 unit of something else.

B. A ratio of something per the total amount.

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.