Starter quiz

  • A bakery sells x cakes for £2.25 each. If the cost to make each cake is £1.20, what is the profit, p, for selling all the cakes?
    • p = 1.2x
    • p = (2.25-1.2)x  ✓
    • p = 2.25x - 1.2
  • What is the value of x in 2x + 3 = 15
    • '6' ✓
  • Simplify 3ax + 9ax + 13ax + b
    • '25ax + b' ✓
  • Expand 2(x - 3) + 4(2x + 1) and simplify where possible.
    • '10x - 2' ✓
  • Simplify 3(x + 2)^2 - (x - 1)(x + 1) where possible.
    • 2x^2 + 12x + 13  ✓
    • 3x^2 + 12x + 7
    • 4x^2 + 12x + 7
  • Factorise 4x^2 - 16 completely.
    • (2x + 4)(2x - 4)
    • (2x)^2 - 4^2
    • 4(x-2)(x+2)  ✓
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