The description should be a vertical line on the negative side on the grid and the vertical line should be placed on the negative 8 on the x axis.
I can’t see it, make it clearer please
It is a root of the polynomial if it causes the equation to equal 0.
Let's try each number.
Substituting -3 for x...
(-3)³ - 4(-3)² -11(-3) + 30
-27 - 36 + 33 + 30
0
Therefore, a. -3 is a root to our polynomial.
You could try the rest, but I won't waste time with it. None of the others are roots, and it's multiple choice which means usually just one answer.
All interior angles are equal to 180. Because a right triangle has one 90 degree angle. The sum of the two interior angles is equal to 90. Because both the interior angles are the same, each one measure 45 degrees
