Quiz & assessment · StarBridge

Demonstration only

Multiple-choice, short-answer and calculation questions are marked on the server against a sample answer key. Theory answers need AI or teacher marking, which is not connected yet. Results are not saved.

Q1Multiple choice · 1 mark

Which of these is the factorised form of x² + 5x + 6?

(x + 1)(x + 6)

(x + 2)(x + 3)

(x − 2)(x − 3)

(x + 5)(x + 1)

Q2Multiple choice · 1 mark

If (x − 4)(x + 1) = 0, what are the solutions?

x = −4 or x = 1

x = 4 or x = −1

x = 4 or x = 1

x = −4 or x = −1

Q3Short answer · 1 mark

What name is given to the expression b² − 4ac?

Q4Calculation · 2 marks

Find the positive solution of x² − 2x − 8 = 0.

Q5Calculation · 2 marks

Calculate the discriminant of 3x² + 4x − 1 = 0.

Q6Theory · 3 marks

Explain, in your own words, why the solutions of a quadratic equation are the x-intercepts of its graph.

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