-3
You can tell if an equation is a function if for any x value that you put into the function, you get only one y value. The equation you asked about is the equation of a line. It is a function.
5
The graph of is shifted 3 units down and 2 units right. Which equation represents the new graph?
No. The equation x=7 has an undefined slope since it is simply a vertical line located at x = 7. A basic test for a function is if you can draw a vertical line through the graph of the equation and it touches in more than one place, it is NOT a function.
-18
You can tell if an equation is a function if for any x value that you put into the function, you get only one y value. The equation you asked about is the equation of a line. It is a function.
A function.
No, that is a equation.
y - |x| is an expression, not a function.
a function
Yes.
5
-2
The [ 2x + 1 ] represents a function of 'y' .
Yes, none of the X values repeat, therefore it is a function. X=0 is not a function though.
Yes.
Yes it is a function. In standard form it is y=x-4.