A projectile is shot into the air. The altitude of the projectile after seconds is modeled by the function graphed. Time is measured in seconds and altitude ℎ() is measured in feet. The table models the flight of the projectile.

Which of these statements is true?
A.
ℎ(4) < ℎ(20)
B.
The flight is symmetric about the line = 10.
C.
The projectile will hit the ground at some value of less than 24.
D.
f 0 < < 12, then ℎ(12 − ) = ℎ(12 + ).

Statement reason 1. δabc is similar to δced. given 2. 3. definition of slope 4. slope of slope of definition of slope 5. slope of × slope of multiplying the slopes 6. slope of × slope of substitution property of equality 7. slope of × slope of simplifying the right side the table contains the proof of the relationship between the slopes of two perpendicular lines. what is the reason for statement 2? a. parallel line segments that meet a common perpendicular line are proportional in length. b. the lengths of vertical and horizontal sides in congruent triangles are in a common ratio. c. trigonometric identities determine the lengths of the legs in a right triangle. d. corresponding side lengths in similar triangles are proportional in length.