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Combine it All Together

Combine it All Together. A function is described by the equation f ( x ) = x 2 + 5. The replacement set for the independent variable is {1, 5, 7, 12}. Which of the following is contained in the corresponding set for the dependent variable? A 0 B 6 C 7 D 15.

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Combine it All Together

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  1. Combine it All Together

  2. A function is described by the equation f (x) = x2 + 5. The replacement set for the independent variable is {1, 5, 7, 12}. Which of the following is contained in the corresponding set for the dependent variable? • A 0 • B 6 • C 7 • D 15

  3. Which equation could be used to generate this table of values? • A y = −2x • B y = 2x + 1 • C y = x + 1 • Dy = x2 + 1

  4. Vicki works as a salesclerk in a clothing store. She earns $10 per hour plus a commission of 6% of her total sales. Which equation represents e, her total earnings when she works h hours and sells a total of d dollars in merchandise? • Ae = 10h + 0.06d • B e = 10h + 0.6d • C e = 6h + 10d • D e = 0.06h + 10d

  5. Troy borrowed money from his father so that he could buy a used car. The table shows the remaining balance, b, of Troy’s loan after each payment. Which function can be used to describe this relationship? • A b = 3910 + 225p • B b= 4135 − 225p • C b = 2785 + 225p • D b = 3685 − 225p

  6. The height, h, of a football when kicked with respect to time, t, is described by the function h = −16t2 + 48t. Which graph shows the correct sketch of this function? A B

  7. Jake studied the parabola shown below. Which is an accurate conclusion that Jake could make about this parabola? • A The vertex is at (−2, 0). • B The minimum value is at (0, −4). • C The maximum value is at (2, 0). • D The axis of symmetry is the x-axis.

  8. Which of the following represents the parent function of y = x2 − 2x − 15? • A y = x • B y = x2 − 15 • C y = x2 • D y = −2x

  9. Which of the following are the domain and range for the graph shown below? A 0 ≤ x ≤ 4 0 ≤ y < 36 B 0 ≤ x ≤ 36 0.5 ≤ y ≤ 3.5 C 0.5 < x < 3.5 0 < y < 36 D 0.5 ≤ x ≤ 3.5 0 ≤ y ≤ 36

  10. Which statement is true for the graph below? • A Ms. Goodlett will earn $500 if she sells $5000 worth of merchandise. • B Mr. Murphy will not earn any money if he does not sell any merchandise. • C Mr. Lefeber will earn $1000 if he sells $1000 worth of merchandise. • D Ms. Cho will earn $700 if she sells $5000 worth of merchandise.

  11. x + c x Which equation best represents the area, A, of the rectangle below? • AA= 2x + 2(x + c) • BA = x2 + (x + c)2 • CA = x(x + c) • DA = 2x(x + c)

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