find the equation of a parabola whose vertex is at (-1,7), whos axis of symmetry is x=-1, and who's y-intercept is (0,10). write your answer in vertex form

Organic apples are on special for $1.50 per pound. does total cost vary inversely or directly with the number of pounds purchased? find the cost of 3.4 pounds of apples. a. inversely: $5.10 b. directly; $5.10 c. inversely: $2.27 d. directly; $2.27