1 |
a. |
(3, 1) |
b. |
(3, 1) |
c. |
(1, 6) |

d. |
(1, 2) |
e. |
(8, 3) |
f. |
(5, -2) | |

g. |
(1, -1) |
h. |
(3, 1) |
i. |
(9, 3) | |

j. |
(2, 2) |
k. |
(4, 1) |
l. |
(2, -2) | |

m. |
(3, 1/3) |
n. |
(5, -1) |
o. |
(-1, -3) | |

2 |
a. |
(4, 16) and (1, 1) |
b. |
(-3, -1) and (1, 3) |
c. |
(-4, 3) and (-3, 4) |

d. |
(0, -3) and (12/5, 9/5) |
e. |
(6, 1) and (-1, -6) |
f. |
(-1/2, 2) and (-1, 1) | |

g. |
(5, 8) |
h. |
(-3, -2) and (2, 3) |
i. |
(4, 2) and (-2, -4) | |

j. |
(-2, 1) |
k. |
(16/3, 4) and (4/3, -2) |
l. |
(6, 0) and (-2, 16) |

3. A pie costs $2 and a coke costs $2.

4. A small photograph costs $3 and a large photograph cost $8.

5. Three CDs and four tapes cost $168.

6. The two numbers are 38 and 74.

7. A crayfish costs $24.

8. A kg of bananas costs $2 and a kiwifruit costs 50 cents.

9. The two numbers are 100 and 68.

10. The number is either 2 or -8.