What is this answer? i'm really confused

Complete the solution of the equation. find the value of y when x equals to 6 4x+y=20

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

The equation of a parabola is given. y=18x2+4x+20 what are the coordinates of the focus of the parabola?