Question

the equation of the quadratic function represented by the graph is y=a(x-3)^2-1. What is the the value of a

Answer 1

`y = a(x - 3)^(2) - 1 \\ \\ 1. \: y + 1 = a(x - 3)^(2) \\ 2. \: (y + 1)/(a) = (x - 3)^(2) \\ 3. \: + \sqrt (y + 1)/(a) = x - 3 \\ 4. \: x - 3 = \sqrt (y + 1)/(a) \\ 5. \: x - 3 = - \sqrt (y + 1)/(a) \\ 6. \: x = \sqrt (y + 1)/(a) + 3 \\ 7. \: x = - \sqrt (y + 1)/(a) \\ 8. \: x = \sqrt (y + 1)/(a) + 3 \: - \sqrt (y + 1)/(a) + 3 \\ answers`