Find the equation of the following lines: express your answer in slope-intercept form.
a) The line passing through (-2,5) and (4,9).
b) The equation of the line that passes through the point (-2,3) and is parallel to the line 5x + 3y =12.
c) The equation of the line that passes through the point (-2,3) and is perpendicular to the line 5x + 3y =12
d) The equation of the line with x-intercept 5 and y-intercept -2.