What are the zeros of the quadratic function f(x)=8x^2-16x-15

Credit card a offers an introductory apr of 3.4% for the first three months and standard apr of 15.7% thereafter,

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?

Graph the equationy=x^2 -[tex]y = x^{2} - 2[/tex]