Set T consists of all points (x, y) such that x^2 + y^2 = 1. If point (a, b) is selected from set T at random, what is the probability that b> a + 1 ?
x^2 + y^2 = 1 describes a circle with radius 1 centered at (0,0).
Split the circle into fourths using the coordinate plane's quadrants
a and b are positive
Here, b < a + 1
a is negative and b is positive
Here b > a + 1
a is negative and b is negative
Here b < a+1
a is positive and b is negative
Here b < a + 1