Find the x and y Intercepts f(x)=(3x^2-15x)/(4x^2+4x)

$f (x) = \frac{3 x^{2} - 15 x}{4 x^{2} + 4 x}$

Find the x-intercepts.

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

$0 = \frac{3 x^{2} - 15 x}{4 x^{2} + 4 x}$

Solve the equation.

Set the numerator equal to zero.

$3 x^{2} - 15 x = 0$

Solve the equation for $x$ .

Factor $3 x$ out of $3 x^{2} - 15 x$ .

Factor $3 x$ out of $3 x^{2}$ .

$3 x (x) - 15 x = 0$

Factor $3 x$ out of $- 15 x$ .

$3 x (x) + 3 x (- 5) = 0$

Factor $3 x$ out of $3 x (x) + 3 x (- 5)$ .

$3 x (x - 5) = 0$

If any individual factor on the left side of the equation is equal to $0$ , the entire expression will be equal to $0$ .

$x = 0$

$x - 5 = 0$

Set $x$ equal to $0$ .

$x = 0$

Set $x - 5$ equal to $0$ and solve for $x$ .

Set $x - 5$ equal to $0$ .

$x - 5 = 0$

Add $5$ to both sides of the equation.

$x = 5$

The final solution is all the values that make $3 x (x - 5) = 0$ true.

$x = 0, 5$

Exclude the solutions that do not make $0 = \frac{3 x^{2} - 15 x}{4 x^{2} + 4 x}$ true.

$x = 5$

x-intercept(s) in point form.

x-intercept(s): $(5, 0)$

Find the y-intercepts.

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

$y = \frac{3 {(0)}^{2} - 15 \cdot 0}{4 {(0)}^{2} + 4 (0)}$

The equation has an undefined fraction.

Undefined

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

y-intercept(s): $None$

List the intersections.

x-intercept(s): $(5, 0)$

y-intercept(s): $None$