Can someone help me understand this please

angle r = ___ degrees

31

Step-by-step explanation:

The angle formed by two secants intersecting outside a circle is equal to half the difference of the intercepted arcs.

So ∠r =

angle r is 31 degrees.

(- 1, 0 )

step-by-step explanation:

an x- intercept is where the function crosses the x- axis.

to find the x- intercept/s look for the value of x when f(x) = 0

from the given table there are 3 values of x where f(x) = 0

when x = - 1, x = 2, x = 3

the one that is listed is (- 1, 0 )