Line m passes through the points (-4.3) and (-4.7). What is the slope of the line that is perpendicular to line m?

What are the sotions to the quadratic equation 9x^2=4

Which is a true statement about an exterior angle of a triangle a. it is formed by two segments that are not sides of the triangle, b. it forms a linear pair with one of the interior angles of the triangle, c. it is complementary to one of the interior angles of the triangle. d. it is formed by two segments that are sides of the triangle.

What does the sign of the slope tell you about a line?