X² <span>+ 11x = -28
to find the solution of this polynomial, it'll be easiest to try and factor it. the first thing you need to do is move everything to one side:
</span>x² + 11x = -28 ... add 28
x² + 11x + 28 = 0 ... factor
(x + 7)(x + 4) = 0 ... now set both of your factors equal to zero and solve for x
x + 7 = 0
x = -7
x + 4 = 0
x = -4
Answer:
422.39
Step-by-step explanation:
use a calculator for the above and round
D is the only point that is a solution to the graph.
You can tell this in two ways. Firstly, you can look into the graph and find the points that are in between the two parabolas. You'll notice only D falls between those two.
The second way is that you can plug into each equation algebraically to see if they produce true statements. D produces two true statements.
y < x^2 + 2
-2 < 0^2 + 2
-2 < 2 (TRUE)
y > x^2 - 6
-2 > 0^2 - 6
-2 > -6 (TRUE)
Hello,
slope=2
y-1=2(x-4)
==>y=2x-8+1
==>y=2x-7
or 2x-y=7
I think it is called the final(e) floor. I'm not exactly sure tho...