(a) Work out the area of triangle ABC. Give your answer correct to 3 significant figures. (b) Work out the length of the side AB. Give your answer correct to 3 significant figures.

Find

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3 sign

ificant figu

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The diagram shows part of the curve with equation y = f(x). (a) Write down the coordinates of the maximum point of the curve with equation (i) y = f(x + 3) (ii) y = 2f(x) (iii) y = f(3x) The curve with equation y = f(x) is transformed to give the curve with equation y = f(x) − 4 (b) Describe the transformation.

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B+Power Hour 1

The histogram shows information about the times, in minutes, that some passengers had to wait at an airport. Work out the percentage of the passengers who had to wait for more than one hour.

Pro

ve algeb

raically that (2

n + 1

) 2 − (2n

+ 1) is an

even n

um

ber fo

r all p

ositive in

teger values o

f n.

Triangle ABC is drawn on a centimetre grid. Triangle PQR is an enlargement of triangle ABC with scale factor ½ and centre (0, 0). Work out the area of triangle PQR.

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B+Power Hour 2