Question

Where c consists of the top half of the circle x2 + y2 = 25 from (5, 0) to (−5, 0) and the line segment from (−5, 0) to (−6, 4)?

Answer 1

the line that passes through (-5,0) (-6,4)
$y - 0 = - 4(x + 5) \\ y = - 4x - 20$