College Algebra (PRELIM EXAM)

What is a constant?

• a number with a value that is always the same

• an unknown number of quantity represented by a letter

• a numerical quantity placed before and multiplying the variable in an expression

• a part of an expression that are separated by symbols or operations

What is a coefficient?

• A number with a value that is always the same

• An unknown number of quantity represented by a letter

• a numerical or constant quantity placed before and multiplying the variable in an algebraic expression

• The parts of an algebraic expression that are separated by symbols or operation

What is algebra primarily concerned with?

• only numbers

• letters and symbols representing numbers

• equations only

• geometry

In algebra, what is the coefficient in the expression 5x?

• 5

• x

• 5x

• 1

Which of the following represents a binomial?

• x+2

• x

• x²+3x+2

• 5

In the number line, what is the position of a negative number relative to zero?

• to the right

• to the left

• directly at zero

• above zero

What is the value of 2³?

• 2

• 6

• 8

• 12

What is a surd?

• a whole number

• a fraction

• a square root that cannot be simplified

• a cube root

What happens when you multiply two numbers with the same sign?

• the result is negative

• the result is positive

• the result is zero

• the result depends on the numbers

What is the sum of 3x and 5x?

• 8

• 8x

• 15x

• x