Y=2(x- 1) The equation (x-3) brought into the circle is derived from the straight line L? +4(x- 1)？ =9 reduced to 5 times? - 14x+4=0

|x 1-x2|=[2√( 144？ -4 * 5 * 4)]/10 = (2 √ 29)/5 (PS: x1,x2 can be solved by an equation or directly written as a formula).

Chord length = │ x1-x2 │ *√ (k 2+1) = (2 √ 29)/5 *√ (2? + 1)=(2√ 145) /5