What is the domain of (y+8)/(y^2-3y+2) ?

The domain of (y+8)/(y^2-3y+2) is y 2

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domain of (y+8)/(y^2-3y+2)

domain

\frac{y + 8}{y ^{2} - 3 y + 2}

y < 1 or 1 < y < 2 or y > 2

Interval Notation

(- \infty, 1) \cup (1, 2) \cup (2, \infty)

Solution steps

Find undefined (singularity) points:

y = 2, y = 1

The function domain

y < 1 or 1 < y < 2 or y > 2

f (x) = \frac{1}{x ^{2}} - 1

f (x) = \frac{6 x ^{2} + x - 5}{3 x ^{2} - 7 x - 20}

f (x) = \frac{6}{x - 7}

\frac{x + 19}{x - 17}

What is the domain of (y+8)/(y^2-3y+2) ?
The domain of (y+8)/(y^2-3y+2) is y<1\lor 1<y<2\lor y>2