Question

Cell phone coverage is in a circular pattern from the tower. If the equation of this pattern is x2 + y2 = 4225, how many miles away from the tower will you have coverage?

Answer 1

General formula for circles at the origin is x^2+y^2=R^2 where R is the radius.So R^2=4225. Solve for R.

Answer 2

We can get the coverage up-to 65 miles distance from the tower.

Explanation:

Cell phone coverage from a tower can be represented by x² + y² = 4225

This equation is in the form of x² + y² = r², a standard equation for a circle having radius r and center at (0, 0).

When we compare this standard equation with the equation given we find

r² = 4225

r² = (65)²

r = 65

Therefore, we can get the coverage up-to 65 miles.