Answer
Linear equations
Explanation:
that’s what they look like linear equations are how you graph a line
The formula is y=Mx+b
The M is the slope which is how many times u move up or down, and left or right on the line. In this case its 5 you would move up 5 and right 1
With negative slope, for example -5 you would move either up 5 left 1 or down 5 right 1.
The B is the y-intercept which is when x is equal to 0 in your case its 1 for the first problem and -1 for the second problem
that’s kinda all to know about linear equations for now!