Variable and Algebraic Expressions

For the following expression

 $-x^2+5$  
Which number represents the coefficient of  $x^2$   ?

• -1

• 1

• 2

• 5

 $-5\ -\ 1$  ?

• -6

• 4

• 5

• -4

• 6

What is the value of the expression
 $2x-1$  if  $x=-2$  ?

• -5

• 3

• -3

• 5

Which Algebraic expression is represented by the verbal expression

"4 less than a number"

• $x-4$

• $x+4$

• $\frac{x}{4}$

• $4-x$

Which Algebraic expression is represented by the verbal expression

"Twice a number"

•  $2n$  
  

•  $n+2$  
  

•  $\frac{n}{2}$  
  

•  $n-2$  
  

 $-4\left(-1\right)\ ?$  

• 4

• -4

• -5

• 5

• -3

Evaluate the expression $-\ 3\ \left(x-4\right)\ +\ 8$  when  $x=1$  

• 17

• -1

• 1

• -17

Evaluate the expression $m^2+m-6$  when  $m=-3$  

• 0

• 18

• -9

• 9

Which verbal expression represents the algebraic expression $x-1$  ?

Select all that applies

• 1 less than a number

• A number decreased by 1

• The sum of 1 and a number

• The product of x and 1

• A number minus 1

Evaluate the expression 

 $3y+2x$  

when   $x=-2$  and  $y=1$  

• -1

• 1

• -4

• 4