Review for Midchapter Quiz Chapter 2 1. (Look to the whiteboard!) 2. Find the x-intercept and the y-intercept of each line. a. X – 3y = 9 b. Y = 6x 3. Write the equations of each line is slope-intercept form and identify the slope. a. 2x – y = 9 b. 5y = -3x – 10 4. Write an equation of each line in standard form with integer coefficients. a. The line through (2, 3) and (4, 5) b. The line through (3, 1) with slope 0 c. The line with slope 2/3 and y-intercept (0,5) d. 2/3 x + 3 = 6y – 15 5. Write an equation of each line in point-slope form. a. (-4, 2) and (-3, 5) b. (0, 0) and (-4, -5) 6. Graph each equation. a. 2y = 4x + 8 b. 4y – x = 16 7. For each function, determine whether y varies directly with x. If so, identify the constant of variation. a. 2y = 3x b. Y + ¾ x = 12 8. Do you understand? a. A group of friends is going to the movies. Each ticket costs $8.00. Write an equation to model the cost of the group’s tickets. b. Graph the equation. Explain what the x-intercept and the y-intercept represent. c. What would be the cost for 12 tickets? d. Could the domain include fractions? 9. Which line is perpendicular to 3x + 2y = 6? a. 4x – 6y = 3 b. Y = -3/2 x + 4 c. 2x + 3y = 12 d. Y = 3/2 x + 1 10. Why is the slope of a vertical line undefined?

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