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Express the following rule in function notation: “subtract 6, then divide by 9”. Select the correct answer:

1. 2. 3. 4. Express the following rule in function notation: “subtract 6, then divide by 9”. Select the correct answer:. {image} {image} {image} {image}. True or False: The domain of the function {image} is [ -4, 7 ]. True False. 1. 2. 3. 4.

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Express the following rule in function notation: “subtract 6, then divide by 9”. Select the correct answer:

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  1. 1. 2. 3. 4. Express the following rule in function notation: “subtract 6, then divide by 9”. Select the correct answer: • {image} • {image} • {image} • {image}

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

  3. 1. 2. 3. 4. Select the correct graph of the function {image} : • {applet} • {applet} • {applet} • {applet}

  4. 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

  5. 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

  6. 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

  7. The graph of the function y = x 2 - 5 x is: {applet} Find the coordinates of its vertex and its intercepts. Select the correct answer: • vertex (2.5, - 6.25); 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, - 5.25); x-intercepts 0, 7 ; y-intercept 0

  8. 1. 2. 3. 4. 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} • {image} • {image} • {image}

  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

  10. 1. 2. 3. 4. The function {image} What are two possible functions f and g? Select all correct answers: • {image} • {image} • {image} • {image}

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