Can someone made this exercises please 16.17.18
решите пожалуйста 16.17.18

Y=4x^2+x-1 solve using quadratic formula

When only separate discreet points are graphed it is called?

Amanda went into the grocery business starting with five stores. after one year, she opened two more stores. after two years, she opened two more stores than the previous year. if amanda expands her grocery business following the same pattern, which of the following graphs represents the number of stores she will own over time?