In the function y = x + 1, the value range of the independent variable x is______ ．

In the function y = x + 1, the value range of the independent variable x is______ ．

The value range of function y = x + 1 and independent variable x is all real numbers

How to draw images such as the absolute value of y = x + 2?
1. The absolute value of y = x + 2
2. The absolute value of y = x - 2
3. The absolute value of y = (x + 2)

When it comes to absolute value problems, it's better to do absolute value analysis by sections, such as the three questions here
y=|x|+2=>y=x+2(x>0),y=2-x(x

The absolute value of y = 8 + X is written as a piecewise function

8+x (x>-8)
y=
-8-x (x

How can a function with two absolute values be transformed into a piecewise function?
Please give a simple example
An example of using the zero point method.

Segment discussion:
y=|2x-4|+|x+1|
x1=2,x2=-1
(1) x≥2,==>2x-4≥0,x+1>0
==>y=2x-4+x+1=3x-3
(2)2>x≥-1,==> 2x-4y=-2x+4+x+1=-x+5
(3)x2x-4