Objectives. Find the zeros, axis of symmetry, vertex and range of a quadratic function from its graph. Find the axis of symmetry and the vertex of a parabola given an equation. Vocabulary. zero of a function axis of symmetry. NOTES.

By3.2 Solving Systems Algebraically. Substitution & Elimination. Solve Equation 2 for x. STEP 1. EXAMPLE 1. Use the substitution method. Solve the system using the substitution method. 2 x + 5 y = –5. Equation 1. x + 3 y = 3. Equation 2. SOLUTION. x = –3 y + 3.

ByRemember!. To add fractions, you need a common denominator. Example 1A: Using the Quadratic Formula. Solve using the Quadratic Formula. 6 x 2 + 5 x – 4 = 0. 6 x 2 + 5 x + (–4) = 0. Identify a, b, and c. Use the Quadratic Formula. Substitute 6 for a, 5 for b, and –4 for c. Simplify.

ByDo Now Evaluate. 1. 5(7) – 1 2. 7(18 – 11) 3. 22 + 17 8 + 3 4. 36 + 15(40 – 35) 5. 3 3 + 7(12 – 4). 34. 49. 161. 111. 83. HWK; p 7 and p 10. EQ: How do I evaluate and simplify algebraic expressions?. M7A1b Evaluate algebriac expressions, using commuative, associative, and

ByAreas of Circles and Sectors. Thursday, September 11, 2014. How do we find the areas of circles and sectors?. Lesson 6.8. M2 Unit 3: Day 10. 2. Radius. 1. Circumference. C = 48 ft. about 7.64 ft. ANSWER. ANSWER. about 81.68 in. Daily Homework Quiz. Warm-Up.

ByPreview. Warm Up. California Standards. Lesson Presentation. Holt CA Course 2. Warm Up Add. 1. –7 + 2 4. –6 + (–28) 2. –12 + (–9) 5. 104 + (–87) 3. 32 + (–19) 6. –18 + (–24) . –5. –34. –21. 17. 13. –42. California Standards.

ByDo Now Find the value of m . 1. 2. 3. 4. undefined. 0. 3.7 Equations of lines in a coordinate plane. Target: SWBAT Find the slope of a line. Target: SWBAT Graph lines and write their equations in slope-intercept and point-slope form. The slope of a line in a coordinate plane

ByEXAMPLE 2. Evaluate a variable expression. Evaluate the expression y – x + 6.8 when x = – 2 and y = 7.2. y – x + 6.8 = 7.2 – ( –2 ) + 6.8. Substitute – 2 for x and 7.2 for y. = 7.2 + 2 + 6.8. Add the opposite – 2. = 16. Add. EXAMPLE 3. Evaluate Change. Temperature.

Bya. Area. = π (2.5) 2. r = 2.5 cm. ANSWER. The area of A is about 19.63 square centimeters. Use the formula for area of a circle. EXAMPLE 1. Find the indicated measure. SOLUTION. A = π r 2. Write formula for the area of a circle. Substitute 2.5 for r. = 6.25π.

Bya. Area. = π (2.5) 2. r = 2.5 cm. ANSWER. The area about 19.63 square centimeters. Use the formula for area of a circle. EXAMPLE 1. Find the indicated measure. SOLUTION. A = π r 2. Write formula for the area of a circle. Substitute 2.5 for r. = 6.25π. Simplify. ≈ 19.63.

ByObjectives. Use the Pythagorean Theorem and its converse to solve problems. Use Pythagorean inequalities to classify triangles. Vocabulary. Pythagorean triple.

ByAn equation is a mathematical statement that two expressions are equal. A solution of an equation is a value of the variable that makes the equation true.

By130. 60. 91. 72. 65. 40. 12. 10. 6. 5. 5. 7. Warm Up Divide. 1. 2. 3. 4. 5. 6. 6. 13. 10. 4. 26. 13. Learn to solve whole-number multiplication equations. 4. 4.

By10.2 Parabolas. Algebra 2 Mrs. Spitz Fall 2007. Objectives. Write equations of parabolas Graph parabolas from given information. Parabolas. We already know the graph of y=ax 2 is a parabola w/ vertex (0,0) and AOS x=0

ByWeek 23, Day One. HW # 76 - p. 142 & 143 # 1-40 even SHOW YOUR WORK! Warm up. Compare. Use < or >. 1. 5 7 2 . –3 –4 3. 2.5 – 2.1.7 4. –8 –7 Solve. 5. 4 + y = 16 6. m – 7 = 14 7. – 3 = 8 + w 8. 7 = t + 10. <. >. >. <. 12. 21. –11.

ByGeometry Medians and Altitudes of Triangle. Warm up. K. 7. N. Q. P. 9.1. 40˚. 36˚. L. J. M. Medians and Altitudes of Triangle. A median of a triangle is a segment whose endpoints are a vertex of the triangle and the midpoint of the opposite side. C. median. A. B. D.

ByWarm Up Evaluate each expression for x = 1 and y =–3. 1. x – 4 y 2. –2 x + y Write each expression in slope-intercept form, then then graph. 3. y – x = 1 4. 2 x + 3 y = 6 5. 0 = 5 y + 5 x. 13. –5. y = x + 1. y = x + 2. y = – x. y = x + 1. y = x + 2. y = – x.

ByWarm Up Evaluate each expression for the given values of the variables. 1. x 3 y 2 for x = –1 and y = 10 2. for x = 4 and y = (–7) Write each number as a power of the given base. –100. 3. 64; base 4. 4 3. 4. – 27; base ( – 3). ( – 3) 3. Learning Targets.

ByPreview. Warm Up. California Standards. Lesson Presentation. Warm Up Find the value of each expression. 1. 2 5. 32. 2. 2 –5. 3. –3 4. –81. 4. (–3) 4. 81. 5. (0.2) 3. 6. 7 (–4) 2. 0.008. 112. 7. 8. 12(–0.4) 3. –0.768. California Standards.

BySolving Equations by Adding or Subtracting. 2-1. Holt Algebra 1. Warm Up. Lesson Presentation. Lesson Quiz. 3. 1. 2. 2. 2. 3. 3. 3. 3. 2. 3. Warm Up Evaluate. 1. + 4 2. 0.51 + (0.29) Give the opposite of each number. 3. 8 4.

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