AnSWErS to tHE StudEnt'S Book ExErCiSES - Hodder Plus Home
AnSWErS to tHE StudEnt'S Book ExErCiSES - Hodder Plus Home
AnSWErS to tHE StudEnt'S Book ExErCiSES - Hodder Plus Home
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Exercise 15.4 (page 206)1 x 5 4, y 5 12 x 5 2, y 5 33 x 51, y 5 34 x 5 2, y 5 35 x 5 5, y 5 16 x 5 2, y 5 17 x 5 3, y 5 28 x 5 4, y 5 39 x 5 3, y 5 110 x 5 3, y 5 21Exercise 15.5 (page 209)1 x 5 2, y 5 12 x 5 2, y 5 33 x 5 3, y 5 24 x 5 2, y 5 35 x 5 5, y 5 16 x 5 2, y 5 17 x 5 4, y 5 28 x 5 22, y 5 39 x 5 2.5, y 5 1.510 x 5 2, y 5 21Mixed exercise 15 (page 210 )1 a) 1.5 b) 212 a) 7.5 b) 253 a) Gradient 5 3, y-intercept 5 22b) Gradient 5 2.5, y-intercept 5 22c) Gradient 5 21.5, y-intercept 5 4d) Gradient 5 2, y-intercept 5 274 a) y 5 x 1 5 b) y 5 24x 1 8 or y 1 4x 5 85 a) yy 4x 313y 3x 11211109876543211 011 2 3 4234567x 5 2, y 5 5xb)11109876543213y102y 3x 72x 3y 121 2 3 4 5 64567x 5 3, y 5 26 a) x 5 4, y 5 2 b) x 5 4, y 5 1c) x 5 4, y 5 2 d) x 5 21, y 5 3e) x 5 3, y 5 2 f) x 5 2, y 5 21g) x 5 21, y 5 2 h) x 5 3, y 5 1Chapter 16Exercise 16.1 (page 217)1 a)Velocity (m/s)20181614121086420b) 1.8 m/s 22 a)6Velocity (m/s)420246b) 24.5 m/s2 4 6 8 10Time (seconds)2 4 68 10xTime(seconds)208Answers <strong>to</strong> the Student’s <strong>Book</strong> exercisesHigher WJEC GCSE Mathematics © 2010, <strong>Hodder</strong> Education