APPM 1340 Exam 1 Solutions
Fall 2010
We set y = 0 to nd the x-intercepts.
x2 4x + 12 = 0
1. (a) 3 (b) 4 (c) 2 (d) 1
x2 + 4x 12 = 0
(x + 6)(x 2) = 0
2. We rewrite the equations in slope-intercept form.
The solutions are x = 6 or x = 2. The two x-intercepts
APPM 1340
Exam 2
Fall 2010
INSTRUCTIONS: Books, notes, and electronic devices are not permitted. Write (1) your name,
(2) section number, and (3) a grading table on the front of your bluebook. Start each problem on
a new page. Simplify your answers. A cor
APPM 1340
Exam 3
Fall 2010
INSTRUCTIONS: Books, notes, and electronic devices are not permitted. Write (1) your name,
(2) section number, and (3) a grading table on the front of your bluebook. Start each problem on
a new page. Simplify your answers. A cor
APPM 1340
Final Exam
Fall 2010
INSTRUCTIONS: Books, notes, and electronic devices are not permitted. Write (1) your name,
(2) section number, and (3) a grading table on the front of your bluebook. Start each problem on
a new page. Simplify your answers. A