Find Vertex of Parabola

Find the Vertex:
f(x) = x² + 10x + 21

• (-5,-4)

• (1,10)

• (10,21)

• No Real Solution

What is the vertex of  x²+10x+24?

• (-5,-1)

• (5,1)

• (6, 4)

• (-6,-4)

What is the vertex of x²+18x+80?

• (9,1)

• (10,8)

• (-9,-1)

• (-10,8)

What's the x value of the vertex of y = 3x² - 6x + 4 ?

• x=1

• x=-6

• x=2

• x=-1

Find the vertex of 
f(x) = -x² - 4x + 12.

• (-2, 16)

• (2, 0)

• (2, 4)

• (-2, 4)

• 2

• -2

• 1

• -1

• (4, -12)

• (4, 20)

• (4, 84)

• (4, 116)

What is the vertex of this parabola?

• (0, 5)

• (2, 1)

• (-1, 2)

• (-2, 1)

If we have the equation y=ax²+bx+c, how can we can find the x-coordinate of the vertex?

• -a

• -b/a

• b/2a

• -b/2a

What is the vertex of y=x²+4x+3?

• (2,1)

• (-2,1)

• (0,0)

• (-2,-1)