Dugopolski Intermediate Algebra, 5/e Review for second test From Chapter 3

Dugopolski • Intermediate Algebra, 5/e • Review for second test • From Chapter 3

Some formulas to know. • Midpoint Formula • Distance Formula • Slope-Intercept form • y-intercept form • Standard form • Slope formula

Question 1 Name the quadrant (2,-3) lies in. A. I B. II C. III D. IV

Question 2 Graph .

Question 2 Graph A. B. C. D.

Question 3 Find the slope of the line through (2,5) and (-3, 4)

Question 3 Find the slope of the line through (2,5) and (-3, 4) A. B. C. D.

Question 5 Find the equation of the line through (2,-6) that is perpendicular to

Question 5 Find the equation of the line through (2,-6) that is perpendicular to A. B. C. D.

Question 6 Rewrite in standard form . .

Question 6 Rewrite in standard form A. B. C. D.

Question 7 Is this the graph of a function? A. Yes B. No

Question 8 A painter charges $50 plus $.20 per square foot painted. Express the cost of having a room painted, C(f), as a function of the number of square feet to paint, f.

Question 8 A painter charges $50 plus $.20 per square foot painted. Express the cost of having a room painted, C(f), as a function of the number of square feet to paint, f. A. B. C. D.

Question 9 • Find the length of the line segment with endpoints (-1,0) and (5,8)

Question 10 • Find the midpoint of the line segment with endpoints (-1,0) and (5,8)

Question 11 • Find the x- and y-intercepts of the line whose equation is x + 3y + 2 = 0.

Question 11 • Find the x- and y-intercepts of the line whose equation is x + 3y + 2 = 0. • A. (-2,0) and (0, -2/3) • B. (-2,0) and (0, -3/2) • C. (1,0) and (0,3) • D. (2/3, 0) and (0, 2) • E. None of these

Question 12 • Find the domain and range of the relation {(9,1), (-7, -2), (-6, -2)}.

Question 12 • Find the domain and range of the relation {(9,1), (-7, -2), (-6, -2)}. • A. D: 9, -7, -6; R: 1, -2 • B. D: {9, -7, -6}; R: {1, -2} • C. D: (9, -7, -6); R: (1, -2); • D. D: {-7, -6, -2, 1, 9}; R: {-7, -6, -2, 1, 9}

1. D2. A3. C4. C5. D6. C Answer Key 7. A 8. A 9. B 10. B 11. A 12. B

Dugopolski • Intermediate Algebra, 5/e • Review for second test • From Chapter 5

Formulas, etc. • Amount Formula: A = P(1 + r)n • Present Value Formula: P = A(1 + r)-n • Rules for exponents; for example: (am)n=amn • Rules for multiplication of binomials;for example: (a + b)2 = a2 + 2ab + b2

Question 1 Evaluate each expression in order:

Question 1 Evaluate each expression in order: A. B. C. D.

Question 2 Simplify: .

Question 2 Simplify: A. B. C. D.

Question 3 Simplify: .

Question 3 Simplify: A. B. C. D.

Question 4 Joe wants to save $5000 towards a new car. How much will he have to invest now at 6% interest compounded annually to have $5000 in 6 years?

Question 4 Joe wants to save $5000 towards a new car. How much will he have to invest now at 6% interest compounded annually to have $5000 in 6 years? A. $298.02 B. $3524.80 C. $7092.60 D. $83886.08

Question 5 Perform the indicated operation:

Question 5 Perform the indicated operation: A. B. C. D.

Question 6 Find the product:

Question 6 Find the product: A. 6x3 – 16x2 -12x + 8 B. 6x3 – 8x2 – 12x + 8 C. 6x3 + 16x2 + 4x - 8 D. -2x2 -12x + 8

Question 7 Expand the binomial:

Question 7 Expand the binomial: A. B. C. D.

Question 8 Find the product: A. B. C. D.

Question 9 Find the product: A. B. C. D.

Question 10 Find the product.

Question11 • Write in decimal (standard) notation.

Question11 • Write in decimal (standard) notation. • 7,230 • 72,300 • 0.000723 • 7,230,000

Question 12 • Write in scientific notation: 0.000344

Question 12 • Write in scientific notation: 0.000344 • A. 3.44 x 10-4 • B. 3.44 x 10-3 • C. 3.44 x 10-7 • D. 3.44 x 103

1. C2. A3. D4. B5. B6. B Answer Key 7. D 8. A 9. D 10. C 11. B 12. A

Dugopolski Intermediate Algebra, 5/e Review for second test From Chapter 3