Select linear or nonlinear to correctly classify each function. Function Linear Nonlinear y−4=−8(x−1) y=x4 y−x2=4.5 3x + 5y = 15 plus brainleist if right

 y-4=-8(x-1) is linear
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y=x4 is non linear, it is a parabola or a curved line
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y-x2=4.5 is non linear as it is curved
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3x + 5y = 15 is linear