Sec 8.3-FocusAns

# Sec 8.3-FocusAns - Section 8.3 Focus Exercise Answers 1 y b...

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Section 8.3 Focus Exercise Answers 1. x + y y + x (4, -3) (0, -4) (-4, -5) a) b) x + y y + (3, -5) (2, -3) (-3, 0) (-6, -1) c) d) The lines cross at (4, - 3) . The lines cross at (0, 1) . 2. Identify the x-intercept, the y-intercept and the slope of each line. Simplify the slope, if possible. a) y-intercept (0, 5); x-intercept (- 4, 0); slope, m = 5 4 b) y-intercept (0, - 6); x-intercept (2, 0); slope, m = 3 1 or 3 c) y-intercept (0, 2); x-intercept (4, 0); slope, m = - 1 2 3. x y + x a) c) d) a) m = b) m = - c) m = - d) m = 5 4 3 1 1 2 1 2 or - 3

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4. Identify the slope and the y-intercept of the line. Then use them to graph the line. Identify the
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Sec 8.3-FocusAns - Section 8.3 Focus Exercise Answers 1 y b...

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