Answer:
Parent function: y = x (linear)
Equation of the graph: y = x - 4
Explanation:
This function is a linear equation and the parent linear function is;
y = x.
These equations are written in the form y = mx + b where m is the slope and b is the y-intercept. Our y-intercept is -4 and our slope is 1 using the method "rise over run" where we count units up for every unit right. This means our equation is;
y = x - 4