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3.7: Quiz II

Difficulty Level: At Grade Created by: CK-12

Multiple Choice – Please circle the letter of the correct answer and write that letter in the space provided to the left of each question.

  1. __________ What is the \begin{align*}x-\end{align*}xintercept of the line \begin{align*}y = \frac{-2}{5} x - 6\end{align*}y=25x6?
    1. \begin{align*}(-6,0)\end{align*}(6,0)
    2. \begin{align*}(0,-6)\end{align*}(0,6)
    3. \begin{align*}(-15,0)\end{align*}(15,0)
    4. \begin{align*}\left ( \frac{-2}{5}, 0 \right )\end{align*}(25,0)
  2. __________ What is the \begin{align*}y-\end{align*}yintercept of the line whose equation is \begin{align*}7x+5y+40=0\end{align*}7x+5y+40=0?
    1. \begin{align*}(-8,0)\end{align*}(8,0)
    2. \begin{align*}(8,0)\end{align*}(8,0)
    3. \begin{align*}(0,8)\end{align*}(0,8)
    4. \begin{align*}(0,-8)\end{align*}(0,8)
  3. __________ Jim’s One Stop is advertising a special for student cell phones. The special will consist of a charge of $15 per month and 4 cents per minute. Which of the following equations best describe the plan where \begin{align*}x\end{align*}x is the time in minutes and \begin{align*}c\end{align*}c is the monthly cost?
    1. \begin{align*}c = 15x + 4\end{align*}c=15x+4
    2. \begin{align*}c = 4x + 15\end{align*}c=4x+15
    3. \begin{align*}c = .04x + 15\end{align*}c=.04x+15
    4. \begin{align*}c = 15x + .04\end{align*}c=15x+.04
  4. __________ What is the \begin{align*}y-\end{align*}yintercept of the line graphed below?
    1. \begin{align*}(7, 0)\end{align*}(7,0)
    2. \begin{align*}(0, 4)\end{align*}(0,4)
    3. \begin{align*}(0, 7)\end{align*}(0,7)
    4. \begin{align*}(4, 0)\end{align*}(4,0)
  5. __________ Which table of values matches the linear function \begin{align*}y = -2x + 3\end{align*}y=2x+3?
  6. __________ What is the domain for the following relation?
    1. domain: \begin{align*}\{ x | x \le 3, x \ \varepsilon \ R \}\end{align*}{x|x3,x ε R}
    2. domain: \begin{align*}\{ x | x \ge -3, x \ \varepsilon \ R \}\end{align*}{x|x3,x ε R}
    3. domain: \begin{align*}\{ x | -3 < x <3, x \ \varepsilon \ R \}\end{align*}{x|3<x<3,x ε R}
    4. domain: \begin{align*}\{ x | -3 \le x \le 3, x \ \varepsilon \ R \}\end{align*}{x|3x3,x ε R}
  7. For the following cube pattern, complete the table below to determine the number of cubes.
Pattern Number \begin{align*}(n)\end{align*}(n) 1 2 3 4 5 ... \begin{align*}n\end{align*}n ... 50
Number of Cubes \begin{align*}(c)\end{align*}(c)
  1. For the following linear graph, identify the \begin{align*}x\end{align*}x and \begin{align*}y-\end{align*}yintercepts.

Answers to Quiz II

  1. C
  2. D
  3. C
  4. B
  5. A
  6. D
Pattern Number \begin{align*}(n)\end{align*}(n) 1 2 3 4 5 ... \begin{align*}n\end{align*}n ... 50
Number of Cubes \begin{align*}(c)\end{align*}(c) 1 5 9 13 18 \begin{align*}4n-3\end{align*}4n3 197

\begin{align*}c & = 4n-3\\ c & = 4({\color{red}50}) -3\\ c & = {\color{red}200} - 3\\ c & = 197\end{align*}cccc=4n3=4(50)3=2003=197

  1. The \begin{align*}x-\end{align*}xintercept is \begin{align*}(-4, 0)\end{align*}(4,0). The \begin{align*}y-\end{align*}yintercept is \begin{align*}(0, 6)\end{align*}(0,6).

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CK.MAT.ENG.SE.1.Algebra-I---Honors.3.7

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