5. A zip-line with an angle of depression of 39° has a length of 85 ft. Find the height of the platform of the zip-line.

25 ! the line of best fit is h = 5a + 86. predict the height at age 16. show your work.

In the figure below, ∠dec ≅ ∠dce, ∠b ≅ ∠f, and segment df is congruent to segment bd. point c is the point of intersection between segment ag and segment bd, while point e is the point of intersection between segment ag and segment df. the figure shows a polygon comprised of three triangles, abc, dec, and gfe. prove δabc ≅ δgfe.

2. explain in words how you plot the point (4, −2) in a rectangular coordinate system.