Isaac applied the following steps to find the product of 4 point 2 times negative 5 point 4 Isaac's Work Step 1: 4 point 2 times negative 5 point 4 is equal to negative 5 point 4 times 4 point 2 Step 2: is equal to negative 5 point 4 times 4 plus negative 5 point 4 times 0 point 2 Step 3: is equal to negative 21 point 6 plus negative 1 point 0 8 Step 4: is equal to negative 22 point 6 8 Which step shows where Isaac applied the distributive property?
The distributive property rewrites a product by multiplying one factor by each part of a sum. In Step 2, Isaac rewrites 4.2 as 4 + 0.2 and distributes −5.4: (−5.4)(4 + 0.2) = (−5.4)(4) + (−5.4)(0.2). So the correct choice is A, Step 2.
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