Chapter 3 Review Linear Equations Sp2017.pdf

# Chapter 3 Review Linear Equations Sp2017.pdf - Econ 156 Bus...

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Econ 156 Bus. & Econ. Math Review Problems from Chapter 3 1. Find the slope of the straight line that passes through the given points. a. (-2, 10), (0, -3) b. (5, 6), (5, -6) c. (1, 7), (8, 7) 2. Write an equation of the straight line that has the following properties in both general linear form and slope-intercept form . Also show each line in a graph . a. Passes through (-4, 5) and has slope -12. b. Passes through (-5, 6) and (1, 3). c. Has slope 3 and y-intercept 6. d. Is horizontal and passes through (-6, -5). e. Is vertical and passes through (9, 10). f. Passes through origin and is vertical. g. Passes through (1, 0) and is perpendicular to 3 x + 6 y = 9. h. Passes through (-8, 9) and is parallel to 6y 3 x + 9 = 0. 3. Find, if possible, the slope and y-intercept of the straight line determined by each of the following equation. a. y = 4x. b. y 3 = 2 x + 6. c. x + y - 4 = 0. d. x 9 = 0. e. 3 (y + 2) 4 (x 1) = 0. 4. A baby weighs 9 pounds at birth and 30 pounds at age 3. Write an equation that shows the linear relationship between the weight and age. How much the child will weigh at age 12?

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