Functions: Domain and range
Function and formula
Take a look at the formula:
\[y=-7\cdot x^2+3\cdot x-9\]
\[y=-7\cdot x^2+3\cdot x-9\]
In this formula, #x# is the .
In this formula, #-7\cdot x^2+3\cdot x-9# is the .
For argument #-2#, the image is .
In this formula, #-7\cdot x^2+3\cdot x-9# is the .
For argument #-2#, the image is .
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