Pearson Edexcel International GCSE (9–1) · MATHEMATICS A · Unit
Unit 4
104 practice questions
Topics covered
Practice questions
11–20 of 37 · Easy
Question 11
2 marks · Easy
Answer and see the solution →Solve the equation .
Question 12
1 mark · Easy
Answer and see the solution →Simplify the expression: .
Question 13
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 14
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 15
1 mark · Easy
Answer and see the solution →Write down the general form of a quadratic equation.
Question 16
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 17
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
Question 18
2 marks · Easy
Answer and see the solution →In the right-angled triangle shown, one side is 12 cm long and the other side (adjacent to the right angle) is 5 cm long. Calculate the length of the hypotenuse.
Question 19
1 mark · Easy
Answer and see the solution →State the sine ratio in a right-angled triangle in terms of the sides.
Question 20
2 marks · Easy
Answer and see the solution →A right-angled triangle has a hypotenuse of 15 cm. One of the other sides is 9 cm. Work out the length of the remaining side.