Find the equation of the line in slope-intercept form ( y = mx + b ) with the given information: 21. the slope is - - and the y-intercept is 3. 22. m = 5 and b = - 23. The slope is = and it passes through the point (4, -5) 24. m = = and it passes through (0, -7) 25. The line passes through (1,3) and (6, -2) 26. The line passes through (3, -4) and (7, -2)