CPM Homework Help : A2C Problem 11-100

Find the equation of the line tangent to the circle x² + y² = 25 at each of the following points. Homework Help ✎
1. (5, 0)
2. (3, 4)

Hint (a):

Find the equation of the line from the center of the circle to this point.

More Help (a):

y = 0

Now find the equation of the line that is perpendicular to this line that passes through this point.

Answer (a):

x = 5

Hint (b):

See part (a) for the method.

Answer (b):

$y=-\frac{3}{4}x+\frac{25}{4}$