Give the equation of the circle centered at the origin and
passing through the point (4,0)

x² + y² = 4²

Step-by-step explanation:

The standard equation of a circle centered at the origin and with radius r is

x² + y² = r²

Note that the point (4, 0) is 4 units horizontally and to the right of the center (0, 0).  Thus, we know immediately that the radius is 4.

Thus the equation of this circle is x² + y² = 4²

final total: 63

step-by-step explanation:

60 times sales tax

60 times 0.05

3

60 + 3

63