When the leading coefficient is 1,
If the constant ( c term) is a perfect square and the b term is 2* the square root of the c term.
Ex.
x*2 + 10x + 25
2*5 = 10 5*5=25
Ex.
x^2 - 12x + 36
2 * -6 = -12 6*6=36
B) An example..... It would be better to explain and give an example to what your trying to say.
You can eliminate graphs A and C because the lines are dotted and you can eliminate graph B because the shaded part is below the solid line and the equation is telling you to shade above so the answer is D
The first thing we need to do is combine like terms
6c+14=-5c+4+9c
6c+14=4c+4
-4c -4c
2c+14=4
-14 -14
2c=-10
-- ----
2 2
c=-5
I hope I've helped!
