Yes, y=-2+x is a linear function.
It is not a linear function because it is missing x as the input variable
Only if it's a function.
No. 1a and 3d are linear, but 2bc is not. ■
Yes.
Yes.
No.
Yes.
The rate of change for the linear (not liner) function, y = 2x +/- 3 is 2.
It is a linear function. That is to say, it is a function representing a straight line in the coordinate plane.
A linear relationship. Added: And a function.
Y = 2X + 8 is a linear function of the form, Y = mX + c. A line.