Second Long Quiz

Let x = 2 and y = 3. Evaluate 3x - 4y.

• 6

• -6

• 2

• -2

Evaluate (2y - 5)² for y = -2.

• 25

• -25

• -81

• 81

Evaluate 3a² - ab when a = -1 and b = 3.

• 12

• -5

• 6

• 0

Let t = 3 and u = -5. Evaluate 3t - u².

• -19

• 31

• 34

• -16

Evaluate (3x - 4)+(x + 8) when x = 2.

• 12

• 20

• -20

• 15

It is defined as a branch of Mathematics which generalizes the facts in arithmetic. In the language of algebra, letters along with numbers and operation symbols are used to create words and phrases

• 
  General Mathematics

• Algebra

• Geometry

• 
  Statistics

In the expression, 2x²−4y+7  , which of the following is the constant?

• 2x²

• -4y

• -4

• 7

It is any algebraic expression separated from another algebraic expression by a plus (+) or a minus ( - ) sign.

• Variables

• Terms

• Numerical Coefficients

• 
  Constants

It is a term without variable. Moreover, it is a value or number that never changes in expression; it's constantly the same

• Constant

• Term

• Numerical Coefficient

• Literal Coefficient

In the expression, 3x+4y−3xy-4  , which of the following is the constant?

• 5

• -4

• 4

• -2