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# 3.7: Quiz II

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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 $x-$intercept of the line $y = \frac{-2}{5} x - 6$?
1. $(-6,0)$
2. $(0,-6)$
3. $(-15,0)$
4. $\left ( \frac{-2}{5}, 0 \right )$
2. __________ What is the $y-$intercept of the line whose equation is $7x+5y+40=0$?
1. $(-8,0)$
2. $(8,0)$
3. $(0,8)$
4. $(0,-8)$
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 $x$ is the time in minutes and $c$ is the monthly cost?
1. $c = 15x + 4$
2. $c = 4x + 15$
3. $c = .04x + 15$
4. $c = 15x + .04$
4. __________ What is the $y-$intercept of the line graphed below?
1. $(7, 0)$
2. $(0, 4)$
3. $(0, 7)$
4. $(4, 0)$
5. __________ Which table of values matches the linear function $y = -2x + 3$?
6. __________ What is the domain for the following relation?
1. domain: $\{ x | x \le 3, x \ \varepsilon \ R \}$
2. domain: $\{ x | x \ge -3, x \ \varepsilon \ R \}$
3. domain: $\{ x | -3 < x <3, x \ \varepsilon \ R \}$
4. domain: $\{ x | -3 \le x \le 3, x \ \varepsilon \ R \}$
7. For the following cube pattern, complete the table below to determine the number of cubes.
Pattern Number $(n)$ 1 2 3 4 5 ... $n$ ... 50
Number of Cubes $(c)$
1. For the following linear graph, identify the $x$ and $y-$intercepts.

1. C
2. D
3. C
4. B
5. A
6. D
Pattern Number $(n)$ 1 2 3 4 5 ... $n$ ... 50
Number of Cubes $(c)$ 1 5 9 13 18 $4n-3$ 197

$c & = 4n-3\\c & = 4({\color{red}50}) -3\\c & = {\color{red}200} - 3\\c & = 197$

1. The $x-$intercept is $(-4, 0)$. The $y-$intercept is $(0, 6)$.

Jan 16, 2013

Jun 04, 2014