Suppose there is a simple index of two stocks, stock A and stock B. Stock A
opens on Monday with 8000 shares at $4.75 per share. Stock B opens on
Monday with 5000 shares at $5.12 per share. Stock A opens on Tuesday at
$5.40 per share, and stock B opens on Tuesday at $5.72 per share. Both
stocks have the same number of shares that they opened with on Monday.
What is the rate of change of this simple index over 1 day?

Given: lines a and b are parallel and line c is a transversal. prove: 2 is supplementary to 8 what is the missing reason in the proof? statement reason 1. a || b, is a transv 1. given 2. ∠6 ≅ ∠2 2. ? 3. m∠6 = m∠2 3. def. of congruent 4. ∠6 is supp. to ∠8 4. def. of linear pair 5. ∠2 is supp. to ∠8 5. congruent supplements theorem corresponding angles theorem alternate interior angles theorem vertical angles theorem alternate exterior angles theorem