Determine if Linear 4^x-9=y

$4^{x} - 9 = y$

Rewrite the equation as $y = 4^{x} - 9$ .

$y = 4^{x} - 9$

A linear equation is an equation of a straight line, which means that the degree of a linear equation must be $0$ or $1$ for each of its variables. In this case, the degree of the variable in the equation violates the linear equation definition, which means that the equation is not a linear equation.

Not Linear

Determine if Linear 4^x-9=y

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