Determine the Vertex of a Quadratic Equation Using the Formula (-b/2a, f(-b/2a))

The graph of a quadratic function is called

• a line

• a hyperbola

• a parabola

• a cubic

Tags

CCSS.HSF-IF.C.7A

What is the axis of symmetry formula?

• y = mx+b

• y = ax²+bx+c

• b² - 4ac

• x = -b/2a

In the quadratic formula, the expression
b²-4ac is called

• discrim

• determinant

• discriminant

• none of these

Tags

CCSS.HSA-REI.B.4B

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

• (-2, 16)

• (2, 0)

• (2, 4)

• (-2, 4)

The axis of symmetry line passes through which point?

• y-intercept

• any random point

• vertex

• symmetrical point for the vertex

An object is launched directly upward at 64 feet per second (ft/s) from a platform 80 feet high. Its height is represented by the equation 
s(t) = –16t² + 64t + 80. What will be the object's maximum height? 

• 2 ft

• 80 ft

• 144 ft

• 64 ft

What's the axis of symmetry of y = 3x² - 6x + 4

• x=1

• x=-6

• x=2

• x=-1

• x = -2; (-2, -11)

• x = 2; (2, 13)

• x = -2; (-2, -3)

• x = 2; (2, -3)

• x = -2; (-2, 2)

• x = -2; (-2, 10)

• x = 2; (2, -6)

• x = 2; (2, 14)

Which of the following equations matches standard form of a quadratic?

• ax + by = c

• y = a(x - h)² + k

• y = ax² + bx + c

• y = mx + b