Exercise Answers: Module 40

Claire Elliott

Exercise Answers: Module 40

Answers

1.

A graph plotting the points a (negative 4, 2), b (negative 1, negative 2), c (3, negative 5), d (negative 3, 5), e (5 thirds, 2).

3.

A graph plotting the points a (3, negative 1), b (negative 3, 1), c (negative 2, 2), d (negative 4, negative 3), e (1, 14 fifths).

5.

A graph plotting the points a (negative 2, 0), b (negative 3, 0), c (0, 0), d (0, 4), e (0, 3).

7.

A graph plotting the points a (0, 0), b (0, negative 3), c (negative 4, 0), d (1, 0), e (0, negative 2).

9. A: $\left(-4,1\right)$ B: $\left(-3,-4\right)$ C: $\left(1,-3\right)$ D: $\left(4,3\right)$

11. A: $\left(0,-2\right)$ B: $\left(-2,0\right)$ C: $\left(0,5\right)$ D: $\left(5,0\right)$

13. A, B

15. A, C

17. B, C

19. A, B

21.

$x$	$y$	$\left(x,y\right)$
0	$-4$	$\left(0,-4\right)$
2	0	$\left(2,0\right)$
$-1$	$-6$	$\left(-1,-6\right)$

23.

$x$	$y$	$\left(x,y\right)$
0	5	$\left(0,5\right)$
3	2	$\left(3,2\right)$
$-2$	7	$\left(-2,7\right)$

25.

$x$	$y$	$\left(x,y\right)$
0	1	$\left(0,1\right)$
3	2	$\left(3,2\right)$
6	3	$\left(6,3\right)$

25.

$x$	$y$	$\left(x,y\right)$
0	1	$\left(0,1\right)$
3	2	$\left(3,2\right)$
6	3	$\left(6,3\right)$

27.

$x$	$y$	$\left(x,y\right)$
0	$-2$	$\left(0,-2\right)$
2	$-5$	$\left(2,-5\right)$
$-2$	1	$\left(-2,1\right)$

29.

$x$	$y$	$\left(x,y\right)$
0	2	$\left(0,2\right)$
3	1	$\left(3,1\right)$
6	0	$\left(6,0\right)$

31.

$x$	$y$	$\left(x,y\right)$
0	$-2$	$\left(0,-2\right)$
10	2	$\left(10,2\right)$
5	0	$\left(5,0\right)$

33. Answers will vary.

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39. Answers will vary.

41. Answers will vary.

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47. Answers will vary.

49.

a)

A graph that plots the points (0, 7), (2, 11), (4, 15), (6, 16), (8, 19), (10, 20) and (12, 21).

b) Age and weight are only positive.

51. Answers will vary.

53. Answers will vary.

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