For which value(s) of x will the rational expression below be undefined?
Check all that apply.
(x-3)(x+6)
x + 7

Question:

For which value(s) of x will the rational expression below be undefined? Check all that apply.

(x-3)(x+6)/x+7

For x = -7 the rational expression is undefined

Solution:

Given rational expression is:

We have to find the value of x for which the rational expression becomes undefined

A rational expression is undefined when the denominator is equal to zero

Here, the denominator becomes zero when x = -7

Substitute x = -7 in given

Thus for x = -7 the rational expression is undefined

the arc length is found by finding the circumference of the full circle (2xpixradius) and then dividing by 4 to find just one quarter of the circle (90 degrees).