To convert 42.3 dekameters to kilometers, decide if you should multiply or divide by a power of 10.

1 dekameter is larger than kilometer so divide by power of 10

42.3 decameters  = 0.423 kilometers so the power of 10 is 10^2

answer:      

step-by-step explanation:

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.