(1/2, 71 and 3/4)or(0.5, 71.75)
yes because ab plus bc is ac
khjgfsddfghjfghjk
u = 7
There are 120 solutions.
The vertex is at the point (0, 4).
x = -3y = -14
The vertex is at (-1,0).
The vertex has a minimum value of (-4, -11)
The equation is linear and so has no vertex.
Interpreting that function as y=x2+2x+1, the graph of this function would be a parabola that opens upward. It would be equivalent to y=(x+1)2. Its vertex would be at (-1,0) and this vertex would be the parabola's only zero.
-2-5
y = x +1 is the equation of a straight line and so has no vertex.
(3, -21)
The vertex of the positive parabola turns at point (-2, -11)
y = x2 + 14x + 21 a = 1, b = 14 x = -b/2a = -14/2*1 = -7
Take the derivative: y' = 2x + 4. Set equal to zero: 2x + 4 = 0 --> x = -2. Substitute into original and y = -3. Axis of symmetry is x = -2. Vertex is (-2,-3)