Select the number property that will justify the step in the following expression.

6 + (14 + 70) =
(6 + 14) + 70 = transitiveidentity - additionassociative - additioncommutative - addition
20 + 70 = 90

Need match the functions with correct transformation. f(x) = -3x f(x) = |x-1|+3 f(x) = √(x+3) 1/2x² f(x) = (x+1)²-3 4|x| 1. compress by a factor of 1/2 2. stretch by a factor of 4 3. shift to the left 3 4. shift to the left 1 5. shift up 3 6. reflection