Find an equation of the line that passes through the midpoint of the line segment joining the points P1(−1, −9) and P2(9, 9) and the midpoint of the line segment joining the points P3(−7, 8)

Question

Find an equation of the line that passes through the midpoint of the line segment joining the points P₁(−1, −9)

 and P₂(9, 9)

 and the midpoint of the line segment joining the points P₃(−7, 8)

 and P₄(7, −8).

 (Let x be the independent variable and y be the dependent variable.)

Answer 1

The two midpoints are (5, 0) and (0, 0).

Use two-point form from Algebra 1 to determine equation.