Expand and simplify: 3(x + 2)(x – 4)

Expand and simplify: 2(x + 7)(x – 2)

Expand and simplify: -4(x – 5)(x + 3)

Expand and simplify: 5(x – 3)(x + 6)

Thinking The Willowbrook Arch is shaped like a parabola. The arch spans 60 metres across its base and reaches a maximum height of 45 metres. Determine the equation of a quadratic function in standard form that models the shape of the arch.

What are the arrangements of Xylem and Phloem pictured below called?

  What type of stem is depicted in this slide? Choose one: Monocot, Dicot or Gymnosperm

Identify the internal root structure labelled A.  

What are the North and South Celestial Poles?

What causes the phases of the moon?