Answer:
HCF of 60 and 80 is 20.
Step-by-step explanation:
Step-by-step explanation:
step 1. The x values refer to the domain of the function.
step 2. if you set y = 0 and solve the quadratic equation the x values refer to the point the graph crosses the x axis.
I don’t know if that’s what you wanted but I hope I helped ;D (sorry for my bad english)