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If , which equation represents ?

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How do you determine whether the equation represents a

The given equation represents \( y \) as a function of \( x \) because for each value of \( x \), we have one value of \( y \) only. d) Given equation that \( x + y^2 = 25 \), solve for \( x \) to obtain

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Tell whether the equation represents direct variation. If so

A choice. f (x) = (x-4) (x+2) (x+4) Let f (x) = 0 to find x-intercepts. 0 = (x-4) (x+2) (x+4) Then solve the equation like linear. Hence, x = 4,-2,-4. Since the x-intercepts are (4,0), (