MCV 4U Page 3 of 3 THINKING 4. A quadraTic funcTion passes Through The origin. AT The origin, The slope of The TangenT To The curve is 5. AT x = 6, The slope of The TangenT To The curve is 91. Find The equaTion of The funcTion. APPLICATION 5. A chemical cleaner from a facTory is accidenTally spilled inTo a nearby lake. The concenTraTion, c, in grams per liTre of cleaner in The waTer t days afTer iT is spilled can be modelled by The . 6!. = > funcTion C(t) 2:2+9' t _ 0 a) AT whaT raTe is The concenTraTion of The chemical cleaner changing aT one week afTer The Spill? b) For whaT values of t is The raTe of change for This funcTion negaTive (keep in mind, you only need To consider t 2 0) 9:22 PM Tue Mar 29 39% X Unit 2 Test - version B.pdf MCV4U Page 2 of 3 KNOWLEDGE 1. Use function notation to differentiate the following function (eg: do NOT use Leibniz notation) by: a. Using the product rule b. Using the quotient rule 3x2 h (x ) = - (Vx+ 3) 3 2. . Using Leibniz notation, apply the chain rule to determine ~ if y = =23, and, u = Vx + 12 when x = 4