Instructions for Use Students will graph each equation using a graphing calculator. Then they will look at the graphs at the bottom of the page to find their answer. Be careful: there are incorrect answers mixed in with the correct ones! Students will eliminate the Zurich locations associated with their graph.
Solving the Case
When they have finished all 15 questions, students will have eliminated all but one location and will discover where Ms. Mann is hiding.
A P.I. R2 Mini-Mystery
Backstory
Ray Radicand is a Private Investigator and owner of an agency he calls R2 P.I. The Case of Ms. Mann’s Briefcase is the fourth and final part of a larger case. In the first activity (Solving Quadratics by Factoring) Ray and his assistants discovered that Ms. Mann had murdered Mr. Quad.
During the search of her home following this discovering, Ray and his team found Ms. Mann’s locked briefcase. Fortunately he also found some clues to the combination. In the second activity, students solve quadratic equations by completing the square and then solve a logic puzzle to unlock the briefcase.
In the briefcase, Ray discovered a message which students decoded by using the Quadratic Formula. This message led the student sleuths to Zurich where they are searching numerous famous locations to find the murderess Ms. Mann so she can be brought to justice.
Who Killed Mr. Quad: Solving Quadratics
by Factoring
The Case of Ms. Mann’s Briefcase:
Solving Quadratics by Completing the Square
The Message in the Briefcase: Solving Quadratics with the Quadratic Formula
NAME DATE PERIOD
Where is Ms. Mann Hiding?
Rea
dy-M
ade
Res
ourc
es, 2
014
Directions: Graph each answer below; then find the matching graph below to eliminate the famous places in Zurich that Ms. Mann could be hiding.
1. 푦 = 2푥 − 6푥 − 8 2. 푦 = 2푥 + 2푥 − 24 3. 푦 = 푥 + 10푥 + 19
4. 푦 = −푥 − 4푥 + 7 5. 푦 = 3푥 + 2푥 − 2 6. 푦 = 푥 + 6푥 − 7
7. 푦 = 푥 − 3푥 − 18 8. 푦 = 푥 − 4푥 + 5 9. 푦 = −2푥 − 2푥 − 5
10. 푦 = 3푥 + 6푥 11. 푦 = −2푥 − 3푥 + 4 12. 푦 = 3푥 + 2푥 − 8
13. 푦 = −2푥 − 4푥 − 1 14. 푦 = 2푥 − 6푥 + 3 15. 푦 = 2푥 − 3푥 − 7
Lindenhofplatz
Grossmunster
Urania Observatory
Bahnhofstrasse
Bad Au-Hongg Opera House
Bellevue Square
Uetilberg Mountain
Aldstadt
Seebad Enge
Rietberg Museum
St. Peterskirche
Zurich Zoo
UBS Polybahn
Fraumunster
Museum of Art
Ms. Mann is hiding in the __________________________________
NAME DATE PERIOD
Where is Ms. Mann Hiding?
Rea
dy-M
ade
Res
ourc
es, 2
014
v
Directions: Graph each answer below; then find the matching graph below to eliminate the famous places in Zurich that Ms. Mann could be hiding.
1. 푦 = 2푥 − 6푥 − 8 Opera House
2. 푦 = 2푥 + 2푥 − 24 Bahnhofstrasse
3. 푦 = 푥 + 10푥 + 19 Lindenhofplatz
4. 푦 = −푥 − 4푥 + 7 Rietberg Museum
5. 푦 = 3푥 + 2푥 − 2 Aldstadt
6. 푦 = 푥 + 6푥 − 7 Fraumunster
7. 푦 = 푥 − 3푥 − 18 Uetilberg Mountain
8. 푦 = 푥 − 4푥 + 5 Grossmunster
9. 푦 = −2푥 − 2푥 − 5 Museum of Art
10. 푦 = 3푥 + 6푥 UBS Polybahn
11. 푦 = −2푥 − 3푥 + 4 Zurich Zoo
12. 푦 = 3푥 + 2푥 − 8 Bad Au Hongg
13. 푦 = −2푥 − 4푥 − 1 Urania Observatory
14. 푦 = 2푥 − 6푥 + 3 Seebad Enge
15. 푦 = 2푥 − 3푥 − 7 St. Peterskirche
Lindenhofplatz
Grossmunster
Urania Observatory
Bahnhofstrasse
Bad Au-Hongg Opera House
Bellevue Square
Uetilberg Mountain
Aldstadt Seebad Enge
Rietberg Museum
St. Peterskirche
Zurich Zoo UBS Polybahn
Fraumunster
Museum of Art
Ms. Mann is hiding in the ___________________________
Bellevue Square