1st Six Weeks review

Absolute value is?

• always positive

• the distance from 0 to a number on the number line

The difference of 7 and 4?

• 7-4

• 4-7

• 4+7

• 7+4

The number y increased by 2?

• 2+y

• y+2

• y-2

• y+2

Two times the sum of a and b?

• a(2+b)

• 2(a+b)

• b(2+a)

The number n is doubled, then decreased by 1

• 2n-1

• n-2

• 2n+1n

• 1-2n

The absolute value of the difference of two numbers

• |2-3|

• |x-y|

• |2+y|

• |x+y|

The product of 3 and x

• 2x

• 3x

• 3+x

• 3/x

The quotient of 48 and 3

• 3*48

• 48-3

The opposite of the absolute value of twice some number

• |2x|

• |-2x|

• -|2x|

Write a verbal expression for each algebraic expression.

5n-1