Mixed Topic Worksheet Grades 6/7: Day 069
- 1
Question 1. The graph shows the cost of hiring a bike for different numbers of hours.
(a) Write down the cost of hiring the bike for 0 hours. [1]
(b) Work out the extra cost for each hour of hire. [2]Gradient as a Rate of Change▶ Show worked answerHide worked answer
- (a) B1: Read the value where the line meets the vertical axis: 20
- (b) M1: (50 − 20) ÷ 5
- (b) A1: 6
Answer: (a) 20; (b) 6[3 marks] - 2
Question 2. A reflection maps the point (2, 9) onto the point (2, 1).
Write down the equation of the line of invariant points of this reflection.Invariant Points▶ Show worked answerHide worked answer
- M1: the mirror line is halfway between the y-coordinates, (9 + 1) ÷ 2
- A1: y = 5
Answer: y = 5[2 marks] - 3
Question 3. The number of hedgehogs in a park is estimated to be 540.
The estimate was found by marking 60 hedgehogs in a first catch.
In a second catch, 45 hedgehogs were caught.
Some of these 45 hedgehogs were marked.
Work out how many of the 45 hedgehogs were marked.Capture-Recapture▶ Show worked answerHide worked answer
- M1: dfracm45 = dfrac60540 or 60 × 45 ÷ 540
- A1: 5
Answer: 5[2 marks] - 4
Question 4. Expand and simplify 5(2 - √7)
Expanding Brackets with Surds▶ Show worked answerHide worked answer
- M1: 5 × 2 and 5 × √7
- A1: 10 - 5√7
Answer: 10 - 5√7[2 marks] - 5
Question 5. Equation A is 2x² - 15x - 8 = 0
Equation B is 4x² - 35x - 9 = 0
Which equation has the larger positive solution? Show how you know.Solving Quadratics by Factorising (a > 1)▶ Show worked answerHide worked answer
- M1: A: (2x + 1)(x - 8) = 0
- M1: B: (4x + 1)(x - 9) = 0
- A1: A has x = 8 and B has x = 9
- B1: Equation B
Answer: Equation B (x = 9 compared with x = 8)[4 marks]
Mixed Topic Worksheet Grades 6/7: Day 069
- 1
Question 1. The graph shows the cost of hiring a bike for different numbers of hours.
[3 marks]
(a) Write down the cost of hiring the bike for 0 hours. [1]
(b) Work out the extra cost for each hour of hire. [2]Gradient as a Rate of Change▶ Show worked answerHide worked answer
- (a) B1: Read the value where the line meets the vertical axis: 20
- (b) M1: (50 − 20) ÷ 5
- (b) A1: 6
Answer: (a) 20; (b) 6 - 2
Question 2. A reflection maps the point (2, 9) onto the point (2, 1).
[2 marks]
Write down the equation of the line of invariant points of this reflection.Invariant Points▶ Show worked answerHide worked answer
- M1: the mirror line is halfway between the y-coordinates, (9 + 1) ÷ 2
- A1: y = 5
Answer: y = 5 - 3
Question 3. The number of hedgehogs in a park is estimated to be 540.
[2 marks]
The estimate was found by marking 60 hedgehogs in a first catch.
In a second catch, 45 hedgehogs were caught.
Some of these 45 hedgehogs were marked.
Work out how many of the 45 hedgehogs were marked.Capture-Recapture▶ Show worked answerHide worked answer
- M1: dfracm45 = dfrac60540 or 60 × 45 ÷ 540
- A1: 5
Answer: 5 - 4
Question 4. Expand and simplify 5(2 - √7)
[2 marks]Expanding Brackets with Surds▶ Show worked answerHide worked answer
- M1: 5 × 2 and 5 × √7
- A1: 10 - 5√7
Answer: 10 - 5√7 - 5
Question 5. Equation A is 2x² - 15x - 8 = 0
[4 marks]
Equation B is 4x² - 35x - 9 = 0
Which equation has the larger positive solution? Show how you know.Solving Quadratics by Factorising (a > 1)▶ Show worked answerHide worked answer
- M1: A: (2x + 1)(x - 8) = 0
- M1: B: (4x + 1)(x - 9) = 0
- A1: A has x = 8 and B has x = 9
- B1: Equation B
Answer: Equation B (x = 9 compared with x = 8)
Mixed Topic Worksheet Grades 6/7: Day 069
- 1
Question 1. The graph shows the cost of hiring a bike for different numbers of hours.
(a) Write down the cost of hiring the bike for 0 hours. [1]
(b) Work out the extra cost for each hour of hire. [2]Gradient as a Rate of Change▶ Show worked answerHide worked answer
- (a) B1: Read the value where the line meets the vertical axis: 20
- (b) M1: (50 − 20) ÷ 5
- (b) A1: 6
Answer: (a) 20; (b) 6[3 marks] - 2
Question 2. A reflection maps the point (2, 9) onto the point (2, 1).
Write down the equation of the line of invariant points of this reflection.Invariant Points▶ Show worked answerHide worked answer
- M1: the mirror line is halfway between the y-coordinates, (9 + 1) ÷ 2
- A1: y = 5
Answer: y = 5[2 marks] - 3
Question 3. The number of hedgehogs in a park is estimated to be 540.
The estimate was found by marking 60 hedgehogs in a first catch.
In a second catch, 45 hedgehogs were caught.
Some of these 45 hedgehogs were marked.
Work out how many of the 45 hedgehogs were marked.Capture-Recapture▶ Show worked answerHide worked answer
- M1: dfracm45 = dfrac60540 or 60 × 45 ÷ 540
- A1: 5
Answer: 5[2 marks] - 4
Question 4. Expand and simplify 5(2 - √7)
Expanding Brackets with Surds▶ Show worked answerHide worked answer
- M1: 5 × 2 and 5 × √7
- A1: 10 - 5√7
Answer: 10 - 5√7[2 marks] - 5
Question 5. Equation A is 2x² - 15x - 8 = 0
Equation B is 4x² - 35x - 9 = 0
Which equation has the larger positive solution? Show how you know.Solving Quadratics by Factorising (a > 1)▶ Show worked answerHide worked answer
- M1: A: (2x + 1)(x - 8) = 0
- M1: B: (4x + 1)(x - 9) = 0
- A1: A has x = 8 and B has x = 9
- B1: Equation B
Answer: Equation B (x = 9 compared with x = 8)[4 marks]