Math121SampleQuiz3

# Math121SampleQuiz3 - Math 121 Name QUIZ#3(SAMPLE QUESTIONS...

This preview shows pages 1–6. Sign up to view the full content.

Math 121 Name: ________________________ QUIZ #3 (SAMPLE QUESTIONS) Show all work, simplify as appropriate, and use “good form and procedure” (as in class). Box in your final answers; write units where appropriate! No notes or books allowed. USE A SCIENTIFIC CALCULATOR! 1) For parts a) and b), sketch the graph of f . You must: • Find and label all critical points and inflection points (if any). • Classify all critical points as relative maximum points, relative minimum points, or neither. • Find the y -intercept. • Have your graph correctly show where f is increasing / decreasing, and where f is concave up / concave down. • Show all steps, as we have done in class. (44 points total) a) fx x x x () =+-+ 292 4 20 32 . (26 points) YOU MAY USE THE BACK OF THIS SHEET!

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
1) cont.) YOU MAY USE THE NEXT SHEET!
b) fx x () = 4 5 . (18 points) YOU MAY USE THE BACK OF THIS SHEET!

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
2) Find the absolute maximum and absolute minimum values of fx x x () =-+ 21 2 5 2 on the interval 14 , [] . (8 points) 3) Your company sells TVs. Fixed costs are \$2000. Each TV costs \$100 to make. The price function is px x =- 1100 20 in dollars, where x is the number of

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
This is the end of the preview. Sign up to access the rest of the document.

## This note was uploaded on 09/08/2011 for the course MATH 121 taught by Professor Staff during the Spring '11 term at Mesa CC.

### Page1 / 6

Math121SampleQuiz3 - Math 121 Name QUIZ#3(SAMPLE QUESTIONS...

This preview shows document pages 1 - 6. Sign up to view the full document.

View Full Document
Ask a homework question - tutors are online