Write the vertex form of a quadratic function with a vertex at (4.5) and a point (8,-3)

Which of the following describes the graph of y--4x-36 compared to the parent square root function? stretched by a factor of 2, reflected over the x-axis, and translated 9 units right stretched by a factor of 2, reflected over the x-axis, and translated 9 units left stretched by a factor of 2, reflected over the y-axis, and translated 9 units right stretched by a factor of 2, reflected over the y-axis, and translated 9 units left save and exit next submit

What is the answer to question 11? will give extra points! include a explanation (reasonable) for you : )

Write an expression that represents the sum of 7 and x