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Express the following rule in function notation: “subtract 6, then divide by 9”. Select the correct answer: {image} 1. 2. 3. 4. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50

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**True or False: The domain of the function {image} is [ -4, 7 ].**

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50

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**Select the correct graph of the function {image} :**

1. 2. {applet} 3. 4. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50

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Find a function of the line segment joining the points (5, 19) and (10, 34). Select the correct answer: f (x) = 3x + 4 f (x) = 6x + 4 f (x) = 3x - 4 f (x) = 3x - 8 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50

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What is the average rate of change of the function f (x) = 4 x - 2 between x = 6 and x = 7? Select the correct answer: 4 - 4 2 - 2 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50

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True or False: To obtain the graph of g (x) = 27|x + 9|, we must stretch the graph of f (x) = 3|x + 9| vertically by the factor of 9. True False 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50

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The graph of the function y = x x is: {applet} Find the coordinates of its vertex and its intercepts. Select the correct answer: vertex (2.5, ); x-intercepts 0, 5 ; y-intercept 0 vertex (3.5, 6.25); x-intercepts 0, 7 ; y-intercept 0 vertex (5, 12.5); x-intercepts 0, 4 ; y-intercept 0 vertex (- 2.5, ); x-intercepts 0, 7 ; y-intercept 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50

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**A rectangular building lot is five times as long as it is wide**

A rectangular building lot is five times as long as it is wide. Find a function that models its area, A, in terms of its width, w. {image} 1. 2. 3. 4. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50

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**Find f (g (x)) for f (x) = 3 x + 7 and g(x) = 5 x - 9**

Find f (g (x)) for f (x) = 3 x + 7 and g(x) = 5 x - 9. Select the correct answer: f (g (x)) = 15x - 20 f (g (x)) = 15x - 26 f (g (x)) = 9x - 14 f (g (x)) = 25x - 36 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50

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**The function {image} What are two possible functions f and g**

The function {image} What are two possible functions f and g? Select all correct answers: {image} 1. 2. 3. 4. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50

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Sections 5.1 & 5.2 Inequalities in Two Variables

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