X^2 + 10X + 21
(X + 3)(X + 7)
24 inches, because if you were to multiply six, by four, since four is the number of sides a square has, it would be 24
We know that this is a parabola, as the equation is denoted by the x^2 term.
We can see that the symmetry is seen at the point -0.5, therefore making the axis of symmetry the vertical line -0.5.
The vertex is found in quadrant three. In other words, it will shift by a negative value both horizontally and vertically. The vertex is therefore (-0.5, -0.5).
We can verify this in the equations by using the formula (-b/2a) to find the vertex. The only quadratic equation that satisfies this is -2x^2 + 2x -1.
To sum it up, the answers are:
-2x^2 + 2x - 1.
AoS: x = -0.5
Vertex: (-0.5, -0.5).
The equation would be:
x≥-4
The cost to the nearest sent is 0.14
This is because you can round the .136 up to the nearest hundredths place.