Ch 1 to 3 Review - Rational, Polynomial, Lines
Chapter
Chapter 3
Section
Ch 1 to 3 Review - Rational, Polynomial, Lines
Solutions 22 Videos

Which expression has the greatest value?

A. -5-2+4

B. 3-12+2

C. 5-(-3)-10-7-(-2)+1

Q1

Which expression has a positive value?

A. (-9.3)^2

B. -9.3^2

C. (-9.3)^3

D. -9.3^3

Q2

Which of these is not equal to -5 \frac{1}{5}?

A. \displaystyle - \frac{26}{5} 

B. \displaystyle -5 + \frac{1}{5} 

C. -5.2

d. -5 - \frac{1}{5}

Q3

Which two numbers have a product of 7^8 and a quotient of 7^4?

A. 7^6 and 7^1

B. 7^3 and 7^2

C. 7^9 and 7^4

D. 7^6 and 7^2

Q4

Which expression is not equal to 2^9

A. \displaystyle 8^3 

B. \displaystyle \frac{(36^3)^3}{(18^3)^3} 

C. \displaystyle (2^3)(2^3) 

D. \displaystyle (2^4)(2^3)(2)(2) 

Q5

Which expression do the tiles represent?

A. \displaystyle (x^2+ 2x + 4)-(3x^2 -3x + 1) 

B. \displaystyle (x^2+ 2x + 4)-3x^2 -3x + 1 

C. \displaystyle (-3x^2+ 3x + 1)+(x^2 + 2x + 4) 

D. \displaystyle (-3x^2- 3x - 1)+(x^2 + 2x + 4) 

Q6

Simplify \displaystyle 12 - 9(x -5)-(3x + 4) 

Q7

The area and length of a rectangle are shown. Determine the missing side.

Q8

i) Line 1 is a direct variation.

ii) Pay is the independent variable.

iii) Line 2 represents a lower-paying job than line 1.

Which choice best represents the statements?

A. Only i) is true.

B. Only ii) is true.

C. Both 1) and ii) are true.

D. Both i) and iii) are true.

Q9

Which statement is false?

A. A line with a negative slope rises to the right.

B. A line with a positive slope rises to the right.

C. The y-intercept of a line is the point where the x—coordinate is 0.

D. If the rate of change of a relation is positive, then its graph goes up from left to right.

Q10

Identify the correct sum of \displaystyle 3\frac{3}{8} + ( - 2 \frac{1}{6}) .

A. \displaystyle 1 \frac{5}{24} 

B. \displaystyle 5 \frac{13}{24} 

C. \displaystyle 1 \frac{1}{14} 

D. \displaystyle - 1 \frac{5}{24} 

Q11

Find the solutions:

\displaystyle - \frac{3}{5} - 2 \frac{1}{4} 

Q12

Which of the following is farthest to the right of zero on a number line.

A. \displaystyle (\frac{5}{8})^2 

B. \displaystyle (\frac{-7}{8})^2 

C. \displaystyle (-1\frac{2}{8})^2 

D. \displaystyle (1\frac{1}{4})^2 

Q13

Which of the following has a value of 1?

A. \displaystyle 1 \frac{1}{2} \times \frac{1}{2} 

B. \displaystyle - \frac{3}{4} \times 1 \frac{1}{3} 

C. \displaystyle \frac{3}{5} \div 1 \frac{2}{3} 

D. \displaystyle - 2 \frac{1}{4} \div (-2 \frac{1}{4}) 

Q14

Which of the following are like terms?

A. 2x and 3x^2

B. -5y and 4x

C. -6a^2 and -6a^3

D. 7c and -9c

Q15

What is the value of 4(2x-3) + 6x^2 when x = - 1?

A. -26

B. 26

C. 14

D. -14

Q16

Which one of these ordered pairs is not on the graph of y = -3x -2?

A. (4, -14)

B. (-2, 3)

C. (-1, 1)

D. (0, -2)

Q17

What is the slope of the line that passes through A(-4, 7) and B(3, -2)?

A. \displaystyle \frac{9}{-7/} 

B. \displaystyle \frac{-7}{9} 

C. \displaystyle \frac{9}{7} 

D. \displaystyle \frac{7}{9} 

Q18

What are the x- and y-intercepts of -2x - 5y = 20?

A. x = 10 and y = -4

B. x = -10 and y = -4

C. x = -10 and y = 4

D. x= 10 and y = 4

Q19

Sara rents a car for a day. She is charged for 535 plus $0.20/ km. Which one of the following statements is false? A. The The initial cost value is$35.

B. The rate of change is $0.20/km. C. The relation between cost and distance driven is a direct variation. D. It will cost Sara$55 to rent the car for one day and drive 100 km.

Q20

Which of the following statements are true?

A. The first differences of a linear relation are constant.

B. The equation of a linear relation has a degree of 1.

C. The first differences of a nonlinear relation are not constant.

D. All of the above.

Q21

A rectangle has a perimeter of 120 cm. Which of the following dimensions are not possible for this rectangle?

A. length 55 cm and width 5 cm

B. length 45 cm and width 15 cm

C. length 26 cm and width 24 cm

D. length 37 cm and width 23 cm