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UNIT 8.7 FACTORING SPECIAL CASES Warm Up Factor each trinomial. 1. x2 + 13x + 40 2. 5x2 – 18x – 8 3. Factor the perfect-square trinomial 16x2 + 40x + 25 4. Factor 9x2…
UNIT 7.6 EXPONENTIAL FUNCTIONS Warm Up Simplify each expression. Round to the nearest whole number if necessary. 1. 32 2. 54 3. 2(3)3 4. 9 5. –5(2)5 6. 54 54 –32 –160…
UNIT 6.1 SOLVING SYSTEMS BY GRAPHING Warm Up Evaluate each expression for x = 1 and y =–3. 1. x – 4y 2. –2x + y Write each expression in slope-intercept form. 3. y…
UNIT 5.2 DIRECT VARIATION Warm Up Solve for y. 1. 3 + y = 2x 2. 6x = 3y Write an equation that describes the relationship. 3. y = 2x y = 2x â 3 4. 5. y = 3x 9 0.5 Solve…
UNIT 3.6 COMPOUND INEQUALITIES Warm Up Solve each inequality. 1. x + 3 ≤ 10 2. 5. 0 ≥ 3x + 3 4. 4x + 1 ≤ 25 x ≤ 7 23 < –2x + 3 –10 > x Solve each inequality…
UNIT 3.1 INEQUALITIES AND THEIR GRAPHS Warm Up Compare. Write , or =. 1. −3 2 3. 2. 6.5 6.3 > 4. 0.25 = Tell whether the inequality x < 5 is true or false for the…
UNIT 9.3 MEASURES OF CENTRAL TENDENCY Warm Up Simplify each expression. 1. 2. 102 â 53 3. Use the data below to make a stem-and-leaf plot. 7, 8, 10, 18, 24, 15, 17, 9, 12,…
UNIT 8.7 FACTORING SPECIAL CASES Warm Up Determine whether the following are perfect squares. If so, fine the square root. 64 yes;7p5 no 2. 36 yes; y4 3. 45 4. x2 5. y8 6.…
UNIT 7.8 GEOMETRIC SEQUENCE Warm Up Find the value of each expression. 1. 25 2. 2–5 3. –34 4. (–3)4 32 5. (0.2)3 6. 7(–4)2 –81 81 112 0.008 7. 8. 12(–0.4)3 –0.768…
UNIT 6.6 SYSTEMS OF LINEAR INEQUALITIES Warm Up Solve each inequality for y. 1. 8x + y < 6 2. 3x – 2y > 10 3. Graph the solutions of 4x + 3y > 9. y < –8x…
UNIT 6.5 LINEAR INEQUALITIES Warm Up Graph each inequality. 1. x > –5 2. y ≤ 0 3. Write –6x + 2y = –4 in slope-intercept form, and graph. y = 3x – 2 Graph and…
UNIT 5.4 POINT-SLOPE FORM Warm Up Find the slope of the line containing each pair of points. 1. (0, 2) and (3, 4) 2. (â2, 8) and (4, 2) 3. (3, 3) and (12, â15) Write the…
UNIT 5.3 SLOPE-INTERCEPT FORM Warm Up Add or subtract. 1. 4 + (â6) 2. â3 + 5 3. â7 â 7 4. 2 â (â1) Find the x- and y-intercepts. 5. x + 2y = 8 6. 3x + 5y = â15 x-intercept:…
UNIT 4.3/4.4 WRITING FUNCTIONS Warm Up Evaluate each expression for a = 2, b = –3, and c = 8. 1. a + 3c 2. ab – c 3. 4. 4c – b 5. ba + c 26 –14 1 35 17 Identify independent…
UNIT 3.3 SOLVING INEQUALITIES USING MULTIPLICATION OR DIVISION Warm Up Solve each equation. 1. –5a = 30 2. Graph each inequality. 5. x ≥ –10 6. x < –3 –6 –10…
UNIT 8.1 ADDING AND SUBTRACTING POLYNOMIALS Warm Up Simplify each expression by combining like terms. 1. 4x + 2x 2. 3y + 7y 3. 8p â 5p 4. 5n + 6n2 Simplify each expression.…
UNIT 7.2 MULTIPLYING POWERS WITH THE SAME BASE Warm Up Write each expression using an exponent. 1. 2 • 2 • 2 2. x • x • x • x 3. Write each expression without using…
UNIT 6.3 SOLVING SYSTEMS WITH ELIMINATION Warm Up Simplify each expression. 1. 3x + 2y â 5x â 2y 2. 5(x â y) + 2x + 5y 3. 4y + 6x â 3(y + 2x) 4. 2y â 4x â 2(4y â 2x)…
UNIT 5.1 RATE OF CHANGE AND SLOPE Warm Up 1. Find the x- and y-intercepts of 2x â 5y = 20. Describe the correlation shown by the scatter plot. 2. x-int.: 10; y-int.: â4…
UNIT 4.2 PATTERNS AND LINEAR FUNCTIONS Warm Up Evaluate each expression for a = 2, b = –3, and c = 8. 1. a + 3c 2. ab – c 3. 4. 4c – b 5. ba + c 26 –14 1 35 17 Identify…