Algebra 1 Chapter 5 Review Name: _____________________________ 1b 1. Given the graph to the right, give the linear equations in slope-intercept form. 1a 2. Find the slope, given two points. Show complete work. a. (-5, 3) (-2, -3) b. (-4, 3) (2, -1) 3. Find the two linear equations in slope-intercept form that would connect the two sets of points. Show complete algebraic work. a. (-5, 3) (-2, -3) b. (-4, 3) (2, -1) 4. Graph the following linear equations that are in slope-intercept form. First identify the slope (m) and the y-intercept (b). Use the sheet of graphs to do your work: 2 a. y= x–2 b. y = -5x + 1 c. y=x–3 3 5. Graph the following linear equations that are in point-slope form. First identify the starting point and the slope. Use the sheet of graphs to do your work: 1 2 a. y + 2 = (x + 4) b. y – 1 = - (x - 2) c. y = 4 (x – 3) 2 5 6. Graph the following linear equations that are in standard from. First show work while finding the both the x and y-intercepts, then graph on the sheet of graphs. a. 2x + 3y = 12 b. -4x – 5y = 40 c. 2x – y = 8 7. Sketch a graph of the following linear equations on the sheet of graphs, then identify the slope of each equation. You may put 2 graphs on one graph. a. y = -3 b. x=5 c. y=7 d. x = -6 8. Change each linear equation below in to slope-intercept form (y = mx + b). Show complete work. 1 2 a. y + 5 = -2(x + 6) b. y – 2 = - (x + 3) c. y + 3 = -2x d. y – 4 = (x – 5) 3 5 9. Now change each equation from problem #8 in to standard form (Ax + By = C). Show work. into slope-intercept form (y = mx + b). Show 10. Change each linear equation below work. a. 3x – 2y = 12 b. –x + 5y = 10 c. -2x – 4y = -8 11.Change the following equations into standard form. Show complete work. 2 3 4 a. y= x+7 b. y= x+ 3 4 5 12. Write an equation of a line in BOTH point-slope form and slope-intercept form with slope, m = -2, and passes through point, (-3, 4). Show work. 13. Write an equation in slope-intercept form of a line that passes through the points, (-2, -4) and (4, 5). Show work. X Y 14. For the table to the right, find the equation of the line in slope-intercept -6 13 form it models. -2 11 2 9 -4 6 7 15. a. Write an equation of a line with a y-intercept of 4 and a slope of . 5 10 5 b. Write an equation of a line with a y-intercept of -3 and a slope, m = 0. c. Write an equation of a horizontal line that passes through point (-2, -7). d. Write an equation of a vertical line that passes through point (1, 8). e. Write an equation of a line that passes through the points, (-8, 0) and (0, -5). 16. a. b. c. d. Write 2 equations of lines in slope-intercept form that are parallel to each other. Write 2 linear equations in slope-intercept form that are perpendicular to each other. The product of the slopes of two perpendicular lines is equal to ______ . The line, x = 3, is it perpendicular or parallel to the x-axis. -3 x + 1, what is the slope of the line parallel to it? 2 -3 b. Write the equation of the line that is parallel to y= x + 1 and passes through the point (-8, 4). 2 -3 c. Given the equation, y= x + 1, what is the slope of the line perpendicular to it? 2 -3 d. Write the equation of the line that is perpendicular to y= x + 1 and passes 2 through the point (6, -8). 17. a. Given the equation, y= 18. Write an equation in standard form of a line that passes through point (4, -6) and is perpendicular to the line, y = 2x + 7. 19. Are the following pairs of lines parallel, perpendicular or neither? Justify your answer without graphing the equations. 1 a. y = - x – 4 2 b. y–4= y = -2x + 4 c. 3x – y = 2 2y = 6x – 4 x – 3y = 12 d. 1 (x – 6) 3 -7x + 8y = -8 8 y + 5 = - (x – 7) 7 20.Find the equations of the lines, in slope-intercept form, that are modeled in the tables. a. b. c. X Y X Y X Y 2 -3 -2 14 4 7 5 6 5 0 8 8 8 15 12 -14 12 9 11 24 19 -28 16 10 21. a. Write an equation of a horizontal line that passes through point (-2, -7). b. Write an equation of a vertical line that passes through point (1, 8). c. Write an equation of a line that passes through the points, (-8, 0) and (0, -5). 22. Write an equation in slope-intercept form of a line that passes through point (4, -6) and is perpendicular to the line, y = 2x + 7.