The point (-4-2 is reflected across the axis

Step-by-step explanation:

as (-4,-2) lies in the 3rd quadrant when reflected across x -axis will come in the 2nd quadrant

therefore, reflected points are- (-4,2)

6(x-5)2+288

Step-by-step explanation:

6x2-60x+438  Factor out a 6 from the first 2 terms.

6(x2-10x     )+438  Do (b/2)2 to find the c term.  (-10/2)2 = 25

6(x2-10x+25)+438-150   Adding 25 inside the parenthesis is really like adding 6(25)=150 to that side of the equation.  To keep the equation in balance, you have to subtract 150 from the other term.  Simplify

6(x-5)2+288