Can you please help me?

Find and classify the slope of the line through each pair of points. (2,,-16)

Refer to interactive solution 17.45 to review a method by which this problem can be solved. the fundamental frequencies of two air columns are the same. column a is open at both ends, while column b is open at only one end. the length of column a is 0.504 m. what is the length of column b?

Give the equations of two different lines that are perpendicular to the line 3x + 4y = 7.