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y=3x+2 make input/output table for the function using domain of -2,-1,0,1,2

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Sarah,
 
an input/output table is a table listing the domain (or x values) to use in the formula.  Each x gives you an answer for y.  Then you simply place those values for y in the table.  IT starts like this:
 
 
 x    y
 
-2
-1
 0
 1
 2
 
now solve the equation for each y and place those in the table.
 
y = 3x + 2,  so for x= -2 you get y = 3*(-2) + 2 = -6 + 2 = -4   Now the table is starting to fill in:
 
 x    y
-2   -4
-1
 0
 1
 2
 
continue with x = -1, so y = 3*(-1) + 2 = -3 + 2 = -1
 
 x    y
-2    -4
-1    -1
 0
 1
 2
 
ok, you try it.  keep going until you use all the values for x.  You can even try some other values for x and predict what they might be by looking at the trend on the table.
 
good luck!,  kim

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