Algebra Extended ! CIE Cambridge IGCSE Core and Extended

7/29/2019 Algebra Extended ! CIE Cambridge IGCSE Core and Extended

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Further Algebra (Extended) page 1

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Further Algebra (Extended) Page 1

QUESTION ANSWER MARK

1 6x > 2 (M1) for x318 < or 18x3 - , x2y , 5yx + 2(B1) for 2 correct anwers

10 (a) 19.75, 1, -10.25 3 (B1) for each correct answer

(b)Scales correct10 correct pointsReasonable curve drawn

131

(P2) for 8 or 9 points correct, (P1) for 6 or 7 points correct

(c)(i) 4.05 1 Allow [4.0 < t < 4.1]

(c)(ii) 2.7 2

(B1) for [0.6 < t < 0.7]

(B1) for [3.3 < t < 3.4]

(c)(iii) 25 2(B1) for 21 1 = 20 (distance travelled to highest point)(B1) for 21 16 = 5 (distance travelled from highest point)

(d)(i)Tangent drawn at (1, 16)Gradient = 10

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(M1) for a (reasonably generous) chord, e.g. allow slight space(M1) for his (vertical horizontal) only if scale used correctly

(d)(ii) Speed, m/s 1,1

TYPES OF MARK

Most of the marks (those without prefixes and B marks) are given for accurate results, drawings or statements.M marks are awarded for any correct method applied to the appropriate numbers.B marks are given for a correct statement or step.A marks are for accurate results or statements but are awarded only if the relevant M marks have been earned.SC marks are awarded in special cases.

The symbol indicates that a previous error is to be followed through i.e. the mark can be gained if the candidate has made no further error inobtaining the relevant result.

Algebra Extended ! CIE Cambridge IGCSE Core and Extended

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