Evaluate the expression -12 - 6a - 4b for each a and b variable pair. Match the variable pair with the resulting value of the expression.

Match Term Definition
? a=1 & b=2 A) -14
? a=-1 & b=-2 B) -26
? a=-1 & b=2 C) -10
? a=1 & b=-2 D) 2

Please help, I need to check these.

Question

Evaluate the expression -12 - 6a - 4b for each a and b variable pair. Match the variable pair with the resulting value of the expression.

Match	Term	               Definition
?		 a=1 & b=2             A) -14
?		 a=-1 & b=-2         B) -26
?		 a=-1 & b=2           C) -10
?		 a=1 & b=-2           D) 2

Please help, I need to check these.

anonymous · Answer

Just replace, in expression " -12 -6a -b", a and b by those given in each line :

e.g. : For a=1 & b = 2 ==> -12-6*1-4*2 = -12-6-8=-26 ==> MATCH definition B