What is an equation in point slope form of the line that passes through (-7,1) and (-3,9)

What will the graph look like for a system of equations that has no solution? a. the lines will be perpendicular. b. the lines will cross at one point. c. both equations will form the same line. d. the lines will be parallel.

How do the definitions, properties, and postulates you've learned about line segments, parallel lines, and angles to define the shapes of polygons

0if x and y vary inversely and y=6 as x=7, what is the constant of variation?