Problem

The graph of y=2x is the solid black graph below. Which function represents the dotted graph?

Answer

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Answer

y=2x+1

Steps

Step 1 :Identify the transformation between the solid black graph and the dotted graph

Step 2 :Notice that the dotted graph is the solid black graph shifted 1 unit to the right and stretched vertically by a factor of 2

Step 3 :Write the transformation as an equation: y=2(2x1)

Step 4 :Simplify the equation: y=2x+1

Step 5 :y=2x+1

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