Try plotting the points on a graph, it might make it a bit easier to figure out an equation
Hey there! Hello!
I believe what this question (more of a statement) is asking is to identify what a letter that represents an unknown number is called. Most of the time, i refer to it as just a variable, or an unknown variable. It can also be referred to as just an unknown value.
Feel free to ask me any additional questions if you have any! :-)
The answer is
A. 3x - y= -7
C is the answer for this question