Functions: Domain and range
              Function and formula
  Function and formula 
                    
    Take a look at the formula:
\[y=2\cdot x^2+7\cdot x+2\]
                    \[y=2\cdot x^2+7\cdot x+2\]
In this formula, #x# is the . 
In this formula, #2\cdot x^2+7\cdot x+2# is the .
For argument #0#, the image is .
                    
                    In this formula, #2\cdot x^2+7\cdot x+2# is the .
For argument #0#, the image is .
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