Pearson Edexcel International GCSE (9–1) · MATHEMATICS A · Unit
Unit 4
104 practice questions
Topics covered
Practice questions
31–40 of 104
Question 31
2 marks · Normal
Answer and see the solution →Solve the equation .
Question 32
4 marks · Hard
Answer and see the solution →Solve the equation . Show all your working.
Question 33
4 marks · Hard
Answer and see the solution →Change the subject of the formula to , giving your answer in terms of and .
Question 34
4 marks · Hard
Answer and see the solution →Solve the equation . Show all your working clearly.
Question 35
3 marks · Hard
Answer and see the solution →A student writes the statement . State whether this is an expression, an equation, or an identity, and explain your reasoning.
Question 36
3 marks · Easy
Answer and see the solution →The equation of a straight line is given by .
(a)[1 mark]Write down the gradient of the line.
(b)[1 mark]Write down the y-intercept of the line.
(c)[1 mark]Find the value of when .
Question 37
4 marks · Easy
Answer and see the solution →The table below shows some values for the quadratic equation .
(a)[2 marks]Complete the table for \( y = x^2 + 2x + 1 \) x -2 -1 0 1 2 y (b)[2 marks]Write down the coordinates of the turning point of the curve.
Question 38
1 mark · Easy
Answer and see the solution →Write down the general form of a quadratic equation.
Question 39
2 marks · Easy
Answer and see the solution →The graph below shows the height, y (in metres), of a skier on a ramp as a function of time, t (in seconds).
Graph: height of skier versus time Question 40
1 mark · Easy
Answer and check →Which of the following equations represents a quadratic graph?
- A.y = 3x + 2
- B.y = 7 - 2x
- C.y = x^2 + 5x - 4
- D.y = 4/x