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February5

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  • 1. Feb. 5, 2013 Snacks Main Course Warm-Up Multiplying &Review Final Dividing Monomials Exam Intro. to Binomials & Polynomials Desserts Class Work: Handout: All
  • 2. Warm- Up Exercises1. A recipe for 9 cookies uses the following ingredients: 1/4 cup flour, 1/3 cup sugar, and 2/5 cups butter. How much butter is needed to make 3 dozen cookies? 1.6 cups2. Write the equation for the graph.3. A family uses 600 kilowatt hours of electricity during themonth of April. The cost is .30 per kilowatt hour. What wastheir cost per day for power during March?4.5. Number Sense: Write, usingscientific notation, the distancefrom Earth to Mars. 33.9 million miles, or 3.39 x 107
  • 3. Final Exam Review:6. Use the graph to find the solution to: y = 2x + 3 2x + 2y = -6 A. (-2,1) B. (-2,-2) C. (2,2) D. (-2,-1) E. None Rearrange the 2nd equation Plot the points from both
  • 4. Final Exam Review: 7. Write an equation of the line through (-2,6) with a slope of 2. A. y = 2x - 10 B. y = -2x + 10 C. y = -2x - 10 D. y = 2x + 10 E. None8. Find the solution to: 3a – 3b + c = 13 (In (a, b, c) order) 4b + c = 12 ⅕(2.5c+10) = -4 A. (5,3,4) B. (4,5,3) C. (5,2,4) D. ( 2,4,5) E. None9. Four adults and three children spend $47 for movie tickets.A family with 2 adults and 4 children spend $36. What is theprice of the adult (A) and children’s (C) tickets? (In (A,C) order)A. (8,5) B. ( 7,4) C. (7,3) D. (8,4) E. None
  • 5. Final Exam Review:10. Solve for p: A = (ap + pH)A. p = a + H B. p = A C. p = A – a D. p = H - a E. None A a+H H A
  • 6. Degree of a VariableThe degree of a variable is the number of times thevariable occurs as a factor. This just corresponds to theexponent of the variable Example: -5x²y³ degree of x = 2 degree of y = 3 3y² degree of y = 2 17 degree of 17 = 0 since there is no variable - m degree of m = 1
  • 7. Degree of a MonomialThe degree of a monomial is the sum of the degrees of all variable factorsExample: -5x²y³ degree = 2+3 = 5 7xy³ degree = 1+3 = 4 -2xyz² degree = 1+1+2 = 4
  • 8. PracticeFind the degree of each monomial
  • 9. Check your answers
  • 10. Simplifying Monomials:Power of a Power Property: Always evaluate a power of a power before moving on the problem.
  • 11. Simplifying Monomials: . .
  • 12. Simplifying Monomials:
  • 13. Simplifying Monomials: Sample Problems