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
β![y=\frac{+1}{+1}x+0](/tex.php?f=y=\frac{+1}{+1}x+0)
or ![y=\frac{-1}{-1}x+0](/tex.php?f=y=\frac{-1}{-1}x+0)
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.