Ch. 1 - Equations and Inequalities
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- In Exercises 1–26, solve and check each linear equation. 4x + 9 = 33
Problem 1
- In Exercises 1–14, express each interval in set-builder notation and graph the interval on a number line. (1, 6]
Problem 1
- In Exercises 1–8, add or subtract as indicated and write the result in standard form. (7 + 2i) + (1 - 4i)
Problem 1
- Solve each equation in Exercises 1 - 14 by factoring. x^2 - 3x - 10 = 0
Problem 1
- Graph each equation in Exercises 1–4. Let x= -3, -2. -1, 0, 1, 2 and 3. y = x^2-3
Problem 2
- In Exercises 1-12, plot the given point in a rectangular coordinate system. (- 2, 3)
Problem 3
- In Exercises 1–14, express each interval in set-builder notation and graph the interval on a number line. [- 5, 2)
Problem 3
- In Exercises 1–8, add or subtract as indicated and write the result in standard form. (3 + 2i) - (5 - 7i)
Problem 3
- Solve each equation in Exercises 1 - 14 by factoring. x^2 = 8x - 15
Problem 3
- In Exercises 1–26, solve and check each linear equation. 7x - 5 = 72
Problem 3
- In Exercises 1–26, solve and check each linear equation. 3(x - 1) = 21
Problem 5
- In Exercises 1–14, express each interval in set-builder notation and graph the interval on a number line. [- 3, 1]
Problem 5
- In Exercises 1–8, add or subtract as indicated and write the result in standard form. 6 - (- 5 + 4i) - (- 13 - i)
Problem 5
- Solve each equation in Exercises 1 - 14 by factoring. 6x^2 + 11x - 10 = 0
Problem 5
- In Exercises 6–8, use the graph and determine the x-intercepts if any, and the y-intercepts if any. For each graph, tick marks along the axes represent one unit each.
Problem 6
- In Exercises 1–26, solve and check each linear equation. 11x - (6x - 5) = 40
Problem 7
- In Exercises 1–14, express each interval in set-builder notation and graph the interval on a number line. (2, ∞)
Problem 7
- In Exercises 1–8, add or subtract as indicated and write the result in standard form. 8i - (14 - 9i)
Problem 7
- Solve each equation in Exercises 1 - 14 by factoring. 3x^2 - 2x = 8
Problem 7
- In Exercises 1-12, plot the given point in a rectangular coordinate system. (- 4, 0)
Problem 9
- In Exercises 1–26, solve and check each linear equation. x - 5(x + 3) = 13
Problem 9
- In Exercises 1–14, express each interval in set-builder notation and graph the interval on a number line. [- 3, ∞)
Problem 9
- Solve each equation in Exercises 1 - 14 by factoring. 3x^2 + 12x = 0
Problem 9
- In Exercises 1–26, solve and check each linear equation. 2x - 7 = 6 + x
Problem 11
- In Exercises 1–14, express each interval in set-builder notation and graph the interval on a number line. (- ∞, 3)
Problem 11
- Solve each equation in Exercises 1 - 14 by factoring. 2x(x - 3) = 5x^2 - 7x
Problem 11
- In Exercises 1-12, plot the given point in a rectangular coordinate system. (- 5/2, 3/2)
Problem 12
- In Exercises 9–20, find each product and write the result in standard form. (7 - 5i)(- 2 - 3i)
Problem 13
- Solve each equation in Exercises 1 - 14 by factoring. 7 - 7x = (3x + 2)(x - 1)
Problem 13
- Graph each equation in Exercises 13 - 28. Let x = - 3, - 2, - 1, 0, 1, 2, 3 y = x^2 - 2
Problem 13
