How do i find out if -5/3 is a zero of the equation 0=18c^3-50c?

Choose the point slope form of the equation below that represents the like that passes through the points (-6,4) and (2, 0)

Problem fathi wants to print out a pdf document that is 48 pages long. to save paper, he decides to print on both sides of each sheet and to print two pages on each side of the sheet. how many sheets of paper will he need?

Aline is perpendicular to another line m2= (-1/m1), where m1 is the slope of the original line and m2 is the slope of the perpendicular line. which of the following equations represents the line that passes through the point (-2,1) and is perpendicular to the line below?