Hey guys I need help with these exercises

Rewrite the following quadratic functions in intercept or factored form. show your work. y = 9 + 12x + 4x^2

Question 1 of 10 2 points different groups of 50 graduates of an engineering school were asked the starting annual salary for their first engineering job after graduation, and the sampling variability was low. if the average salary of one of the groups was $65,000, which of these is least likely to be the average salary of another of the groups? o a. $64,000 o b. $65,000 o c. $67,000 o d. $54,000

Typically a point in a three dimensional cartesian coordinate system is represented by which of the following answers in the picture !