What is the equation of a circle centered at the origin with radius 13

x² + y² = 13²

Step-by-step explanation:

The standard equation of a circle with center at (h, k) and radius r is

(x - h)² + (y - k)² = r²

Here, (h, k) is (0, 0) and r = 13.

We thus have the following result:

x² + y² = 13²

(- 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 )

5   1/4   miles per hour

step-by-step explanation:

15   3/4 / 3 = 5   1/4