New Quiz 4: Maths part 2..(Bonus points)

Right, get these 6 all right, and you get the extra 30 points on top :

EACH ONE RIGHT IS WORTH 20 IN THIS QUIZ

11. Solve the simultaneous equations:
3x - 2y = 2
2x + 5y = 33
a) (-4, -5) b) (4, 5) c) (-5, -4) d) (5, 4) e) none of these


12. If f(x) = 3(x - 7)(x + 1), find f(2.5):
a) 47.25 b) 20.25 c) 15.5 d) 0 e) none of these

13. Two points J and T are plotted at coordinates (-5, -1) and (6, -10) respectively. Calculate the distance from J to T to one decimal place:
a) 14.2 b) 12.4 c) 9.33 d) 20.5 e) none of these

14. The point P(10,12) is reflected in the line y = x onto the point P'. What are the coordinates of P' ?
a) (10,10) b) (-10, -12) c) (12, 10) d) (12, -10) e) none of these

15. The point Q(6,5) is rotated 90° clockwise around (1, 0) onto the point Q'. What are the coordinates of Q' ?
a) (6, -5) b) (5, -6) c) (6, -6) d) (-6, -6) e) none of these

16. A second-hand car was sold for $8000. This represented a loss of 35% of the buying price. How much was the car originally bought for?
a) $2800 b) $10800 c) $10000 d) $12000 e) none of these


Message here:

https://roadeschool.forumotion.com/msg.forum?mode=post&u=1

With your answers!!!

Just post what you think in the message, e.g:

1=f
2=c


Then we will see what happens. Depending on how many you get right, depends on where you are on the league table