Plz me figure this algebra 1 question out

One line passes through (-7,-4) and (5,4) . another line passes through the point (-4,6) and (6,-9)

Find the volume of the described solid. the solid lies between planes perpendicular to the x-axis at x = 0 and x=7. the cross sectionsperpendicular to the x-axis between these planes are squares whose bases run from the parabolay=-31x to the parabola y = 30/x. a) 441b) 147c) 864d) 882

Use composition to determine if (x) or h(x) is the inverse of f(x) for the limited domain x2-1.