Quadratics

What are the x-intercepts for the function
f(x) = (x + 4)(x - 7)?

• x = -4, -7

• x=-4, 7

• x = 4, 7

• x = 4, -7

Tags

CCSS.HSF-IF.C.7C

What is the standard form of a quadratic equation?

• y=x²

• y=ax²+bx+c

• y=(x+h)²+k

• y= (x+a)(x+b)

The graph of a quadratic function is called a

• Parabola

• Vertex

• Axis of Symmetry 

• Vertex Form

Tags

CCSS.HSF-IF.C.7A

The function f(t) = -5t²+20t + 60 models the approximate height of an object t seconds after it is launched. How many seconds does it take the object to hit the ground? 

• 2 seconds

• -2 seconds

• -6 seconds

• 6 seconds

Which answer choice describes  y = -3x² +7x - 2 accurately?

• opens up with a maximum

• opens up with a minimum

• opens down with a maximum

• opens down with a minimum 

Tags

CCSS.HSF-IF.C.7A

Which of the following represents a quadratic function?

• 1

• 3

• 2

• 5

• 4

What is the equation for the axis of symmetry of 
f(x)= x² + 2x + 6

• x = 1

• x = -1

• x = -5

• x = 5

If the quadratic has a positive 'a' coefficient, what direction does the parabola open?

• Up

• Down

• left

• right

Tags

CCSS.HSF-IF.C.7A