Rational Graphs - x/y Intercepts

Front

Back

(0,-2)

Front

How do you find the y-intercept of a function?

Back

Substitute in x = 0.

Front

Back

(-5,0)

Front

How do you find the x-intercept of a function?

Back

Substitute in y = 0.

Front

Back

(-2.5,0)

Front

Define y-intercept.

Back

The y-intercept is the point where the graph intersects the y-axis (x=0).

Front

Define x-intercept.

Back

The x-intercept is the point where the graph intersects the x-axis (y=0).

Front

What does it mean if a function has no x-intercept?

Back

It means the graph does not cross the x-axis, indicating that y is never zero.

Front

What does it mean if a function has no y-intercept?

Back

It means the graph does not cross the y-axis, indicating that x is never zero.

Front

How can you determine if a rational function has a vertical asymptote?

Back

By finding values of x that make the denominator zero.