Find the x and y Intercepts f(x)=(-5x-10)/(x^2-4)

$f (x) = \frac{- 5 x - 10}{x^{2} - 4}$

Step 1

Find the x-intercepts.

To find the x-intercept(s), substitute in $0$ for $y$ and solve for $x$ .

$0 = \frac{- 5 x - 10}{x^{2} - 4}$

Solve the equation.

Set the numerator equal to zero.

$- 5 x - 10 = 0$

Solve the equation for $x$ .

Add $10$ to both sides of the equation.

$- 5 x = 10$

Divide each term in $- 5 x = 10$ by $- 5$ and simplify.

Divide each term in $- 5 x = 10$ by $- 5$ .

$\frac{- 5 x}{- 5} = \frac{10}{- 5}$

Simplify the left side.

Cancel the common factor of $- 5$ .

Cancel the common factor.

$\frac{- 5 x}{- 5} = \frac{10}{- 5}$

Divide $x$ by $1$ .

$x = \frac{10}{- 5}$

Simplify the right side.

Divide $10$ by $- 5$ .

$x = - 2$

Exclude the solutions that do not make $0 = \frac{- 5 x - 10}{x^{2} - 4}$ true.

$No solution$

To find the x-intercept(s), substitute in $0$ for $y$ and solve for $x$ .

x-intercept(s): $None$

Step 2

Find the y-intercepts.

To find the y-intercept(s), substitute in $0$ for $x$ and solve for $y$ .

$y = \frac{- 5 \cdot 0 - 10}{{(0)}^{2} - 4}$

Solve the equation.

Remove parentheses.

$y = \frac{- 5 \cdot 0 - 10}{0^{2} - 4}$

Remove parentheses.

$y = \frac{- 5 \cdot 0 - 10}{{(0)}^{2} - 4}$

Simplify $\frac{- 5 \cdot 0 - 10}{{(0)}^{2} - 4}$ .

Simplify the numerator.

Multiply $- 5$ by $0$ .

$y = \frac{0 - 10}{0^{2} - 4}$

Subtract $10$ from $0$ .

$y = \frac{- 10}{0^{2} - 4}$

Simplify the denominator.

Raising $0$ to any positive power yields $0$ .

$y = \frac{- 10}{0 - 4}$

Subtract $4$ from $0$ .

$y = \frac{- 10}{- 4}$

Cancel the common factor of $- 10$ and $- 4$ .

Factor $- 2$ out of $- 10$ .

$y = \frac{- 2 (5)}{- 4}$

Cancel the common factors.

Factor $- 2$ out of $- 4$ .

$y = \frac{- 2 \cdot 5}{- 2 \cdot 2}$

Cancel the common factor.

$y = \frac{- 2 \cdot 5}{- 2 \cdot 2}$

Rewrite the expression.

$y = \frac{5}{2}$

y-intercept(s) in point form.

y-intercept(s): $(0, \frac{5}{2})$

Step 3

List the intersections.

x-intercept(s): $None$

y-intercept(s): $(0, \frac{5}{2})$

Step 4

Find the x and y Intercepts f(x)=(-5x-10)/(x^2-4)

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