Given f(x) = √(x-3) , what is the positive value of f(12)?

3

Step-by-step explanation:

Given

f(x) = , then

f(12) = = = ± 3

There are 2 values 3 and - 3

The positive value of f(12) is + 3

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.