25. For the data in the table, does y vary directly with x? If it does, write an equation for the direct variation. (1 point) x y 4 28 6 48 8 72 yes; y = 2x yes; y = 5x yes; y = 7x no; y does not vary directly with x. 26. Match the equation with its graph. (1 point) 3x-6y=-18 -10 -5 -5 10 -101 y 10 5 o -10 5 E 5 10 x 10 x 27. Find the slope (rate of change) of the line. (1 point) 3 3 2 + 2 1 0 0 3 4 -2 3 4 28. What is the slope of the line that passes through the pair of points? (1 point) (-6, 8), (2, 3) O 3100 1 0 29. What is the slope (rate of change) of the line? (1 point) 4 3 2 -4 -3 -2 1 0 1 2 3 4 -1 -2 1 00 000 Oundefined + 30. Write an equation in point-slope form for the line through the given point with the given slope. (1 point) (-4, 6); m = 3 Oy-6= = x + 4 3 6=2 / (x-4) Oy-6= Oy-6: Oy+6= - MMM14 M14 3 3 (x+4) (x+4) 31. The table shows the height of a plant as it grows. What equation in slope-intercept form gives the plant's height at any time? Time Height (weeks) (inches) 2 0 8 15 22 29 O 72 y= x+1 7 y=x+8 Oy=7x+1 Oy=7x+8 (1 point) 32. Write y = -2x-4 in standard form using integers. (1 point) 3 2x+3y=-12 2x+3y=-4 -2x+3y=-12 2x+3y=12 33. Tell whether the lines for the pair of equations are parallel, perpendicular, or neither. (1 point) 4 y=x+3 4x-5y=-15 Oparallel Operpendicular Oneither