The question is asking what f(x) is being multiplied by to create g(x).
Think about what is happening to the ycoordinate in f(x) when it is transformed into g(x). In g(x), the marked points are (0,2) and (1,4). In f(x), those marked points are (0,1) and (1,2). Think about what the ycoordinate is being multiplied by to go from 1 to 2 and from 2 to 4. It is being multiplied by 2. Therefore g(x) = 2f(x). The ycoordinates in f(x) are being multiplied by 2 to create g(x). Correct answer is 2. Ask Algebra House
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