The correct answer is 1 and 1/3 of rice
7² + 3² = c²
49 + 9 = c²
58 = c²
c = √58
Point-slope
y - y1 = m(x - x1)
y - 3 = -12(x - 5)
keeping in mind that functions do not have X-repeats, namely the x-coordinate of every pair is different, let's check this one, Check the picture below.