1. use both methods to find the distance between the points on the number line. method a: count the number of units between the points. method b: take the absolute value of the difference of the two numbers. when taking the absolute value, show that the greater number or the lesser number can be the subtrahend (the number subtracted).

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.

i belive those are the ones that are under 90 degreese.