Find the slope of a line parallel to each given line. 17. 7x-2y=4 18.) x=-1 19. 3x-2y=-2 201 x+2y=2 21 x-y=-2 x+y=-2

17. To find the slope of a line parallel to the given line , we first need to find the slope of the given line. We can rewrite the equation in slope-intercept form , where is the slope. The slope of the given line is . Therefore, the slope of a line parallel to this line is also .18. The equation represents a vertical line. The slope of a vertical line is undefined. Therefore, the slope of a line parallel to this line is also undefined.19. To find the slope of a line parallel to the given line , we first need to find the slope of the given line. We can rewrite the equation in slope-intercept form , where is the slope. The slope of the given line is . Therefore, the slope of a line parallel to this line is also .20. To find the slope of a line parallel to the given line , we first need to find the slope of the given line. We can rewrite the equation in slope-intercept form , where is the slope. The slope of the given line is . Therefore, the slope of a line parallel to this line is also .21. To find the slope of a line parallel to the given line , we first need to find the slope of the given line. We can rewrite the equation in slope-intercept form , where is the slope. The slope of the given line is . Therefore, the slope of a line parallel to this line is also .22. To find the slope of a line parallel to the given line , we first need to find the slope of the given line. We can rewrite the equation in slope-intercept form , where is the slope. The slope of the given line is . Therefore, the slope of a line parallel to this line is also .