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Year 10 Linear Relationships Test A (Standard) Name: __________________________ Class: ______ Multiple choice section – choose the correct answer Question 1 Choose the correct answer. 4.1 A 3y = 2x + 15 5x = -3 is: 6 D 12 2 x 3 D 2x + 3y = 15 By+5=- The solution to the equation 7 – C 3y + 15x = -2 A5 Question 7 The line which is parallel to the line with the equation y 2 x 1 is: A 2 x y 2 B y 2 x 12 C x 2y 4 D 2x y 6 B -6 C -4.8 Question 2 The solution to the equation 5(a – 2) = 3(a + 2) is: A2 B8 C6 4.1 D -2 Question 3 Choose the correct answer. The gradient of the line joining the points (3, -2) and (-3, 7) is: 2 3 2 A BC0 D3 2 3 4.2 Question 4 The gradient of the equation 4x – 2y = 8 is: 4.2 A4 B8 C2 D 4.2 Question 6 Choose the correct answer. The equation of a linear graph with a y-intercept of 5 and a gradient 2 of - is: 3 4.3 Question number Answer 1 2 3 Question 8 4.4 The gradient of a line which is perpendicular to the line with equation y 2 x 4 is: 1 1 A2 B -2 C D 2 2 Question 9 4.5 The solution to the inequation 3x 5 10 is: A x = 5 B x < 5 C x > 5 D x5 Question 10 Choose the correct answer. Which of the following is not a solution of 2 5x < 1? 8 A x = 0 B x = -1.5 C x = -0.9 D x = 2.1 1 2 Question 5 Choose the correct answer. The gradient of the line with equation x = 7 is: A undefined B7 C1 D0 4 5 4.4 4.5 Question 11 4.6 Choose the correct answer. The simultaneous equations y = -2x + 10 and 2y + 3x = 14 have the solution: A x = -6, y = 22 B x = 0, y = 10 C x = 2, y = 6 D x = 6, y = -2 6 7 8 9 Copyright © Pearson Australia 2011 (a division of Pearson Australia Group Pty Ltd) ISBN 978 1 4425 4580 9 10 11 Total 1 Year 10 Linear Equations Test A (Standard) Name: __________________________ Class: ______ Short answer section Question 12 Use words from the list below to complete the following sentences. linear relationship y mx c perpendicular linear equation inequation inverse operations gradient parallel rise over run y-intercept 11 one (a) A ________________________________________ exists between two variables when the graph of the relationship is a straight line. (b) A linear relationship is described by a ______________________________ . (c) Linear equations can be solved by applying _______________________________________ to both sides of the equation. (d) The ______________________of a line is a measure of its steepness which can be evaluated by evaluating the fraction ______________________________. (e) The general equation of a straight line is _____________________ where m is the gradient of the line and c is the ________________________ of the line. (f) Lines which are ___________________ have the same gradients. (g) Lines which are _______________________________ meet each other at an angle of 90 . (h) A linear equation has _____ solution and a linear _______________________ has a range of solutions according to the inequality. Question 13 The line with equation y 2 x 3 is shown on the graph. 4 4.3 4.4 3 4.1 State an equation of a line which is (a) parallel (b) perpendicular to the line y 2 x 3 and sketch them on the graph above. Question 14 Solve the following equation. 4x 5 5 7 Copyright © Pearson Australia 2011 (a division of Pearson Australia Group Pty Ltd) ISBN 978 1 4425 4580 9 2 Year 10 Linear Equations Test A (Standard) Name: __________________________ Class: ______ Question 15 Solve the following equation. 4x 2 2x 1 2 3 5 4 4.1 Question 16 Find the gradient of the line joining the points (1, 3) and (4, 9). 2 4.2 Question 17 Find the gradient of the line shown below. 2 4.2 2 4.3 (1, –1) Question 18 Sketch the graph of y = -3x + 2. Copyright © Pearson Australia 2011 (a division of Pearson Australia Group Pty Ltd) ISBN 978 1 4425 4580 9 3 Year 10 Linear Equations Test A (Standard) Name: __________________________ Question 19 Class: ______ 4 4.4 4 4.5 3 4.5 1 (a) Show that the line with equation x 3 y 1 is parallel to the line with equation y x 11 . 3 (b) Show that the line with equation x 2 y 6 is perpendicular to the line with equation y 2x 3 0 . Question 20 Give the set of positive whole-number values that will solve the following inequations. (a) 3x + 1 16 (b) 5x – 3 < 7 Question 21 Solve to find the set of x values that satisfy 2(3x + 2) 2x – 8 Copyright © Pearson Australia 2011 (a division of Pearson Australia Group Pty Ltd) ISBN 978 1 4425 4580 9 4 Year 10 Linear Equations Test A (Standard) Name: __________________________ Class: ______ Question 22 Solve this pair of simultaneous equations. y = 3x – 10 2x – 3y = 16 4 4.6 Question 23 Solve this pair of simultaneous equations. 2x + 3y = 16 5x – 2y = 2 4 4.6 Short answer total:_________/47 Copyright © Pearson Australia 2011 (a division of Pearson Australia Group Pty Ltd) ISBN 978 1 4425 4580 9 5 Year 10 Linear Equations Test A (Standard) Name: __________________________ Class: ______ Extended answer section Question 24 An elevator is descending towards the basement of a building at a steady rate. It descends 4 metres every 3 seconds and it reaches the basement (h = 0) after 33 seconds. (a) Sketch a graph that describes the relationship between the height, h, of the elevator and the time, t. 7 4.2 4.3 4.4 (b) Find the gradient of the graph and hence, the rate of descent of the elevator. (c) Write down an equation that describes the relationship between the height, h, of the elevator and the time, t. (d) How high is the elevator in the building when t = 0? Copyright © Pearson Australia 2011 (a division of Pearson Australia Group Pty Ltd) ISBN 978 1 4425 4580 9 6 Year 10 Linear Equations Test A (Standard) Name: __________________________ Class: ______ Question 25 (a) Sketch the line with equation y 2 x 4 on the set of axes below. 10 4.2 4.3 4.4 (b) (i) Draw the line AB that passes through the points A(1, 0) and B (4, 6) and find the equation of the line AB . (ii) Prove that the line with equation y 2 x 4 is parallel to the line AB . (c) (i) Draw the line CD that passes through the points C (2, 7) and D(6,5) and find the equation of the line CD . (ii) Prove that the line with equation y 2 x 4 is perpendicular to the line CD . Copyright © Pearson Australia 2011 (a division of Pearson Australia Group Pty Ltd) ISBN 978 1 4425 4580 9 7 Year 10 Linear Equations Test A (Standard) Name: __________________________ Question 26 A baker uses dried fruit in the fruit buns she makes. She has already used half the contents of the last 5 kg bag she has and wants to know how many more buns could possibly be made before she gets the new supply. Each bun uses 12 g of dried fruit ingredients. Class: ______ 4 4.5 5 4.6 3 4.6 (a) Write down an inequation that describes the baker’s situation. (b) Solve the inequation to find out how many buns could be made. Question 27 Colin bought 2 apples and 3 bananas for 80 cents, Sally bought 1 apple and 5 bananas for 75 cents. How much did each piece of fruit cost? Question 28 The sum of three consecutive even numbers is 372. Find the three numbers. Extended answer total:_________/29 Copyright © Pearson Australia 2011 (a division of Pearson Australia Group Pty Ltd) ISBN 978 1 4425 4580 9 8