3. A line is passing thru the points (-2, -4) and (1, -1) Is this a vertical or horizontal line? Explain. b Find the slope of this line C) Write equation of this line in the point-slope form d) Write equation of this line in the slope-intercept form e ) Graph the line and show x-intercept and y-intercept 4. A line is given by the equation x + 7y - 12 = 0 a ) Find equation of a line perpendicular to the given line and passes through point (5, -9) b) Find equation of a line parallel to the given line and passes through point (5, -9) C) Sketch all three lines in the same coordinate system 5. Graph equations below and determine analytically (NOT graphically) where the graphs intersect and find all x-intercepts and y-intercepts. Y1 = | x | - 2 and Y2 = (-1/7)x + 10/7