∫A( 1，4)，S△AOB=2/ 15

∴AC=4∴OB= 1/ 15

∴ point b coordinates (-115,0)

Let the analytical formula of straight line AB be y = KX+B.

Next, use the undetermined coefficient method to find the resolution function. You should know, so I won't teach. There are other situations that you can think for yourself. (Hint: Draw the Y-axis image of AB) The steps and thinking methods are similar to this!

If you are satisfied, adopt it. Thank you!