what's the meaning of the x-intercept

x��)�+�H,Q/V(�HU�MM���KW�Os+t3�JR��SJl���T�_`gC��p޳��YQ�b�';���jy�k��u[���S�?ݵL�醍@%�:&>ٽ�YgË ��r����IOv�M�+Գ�/.H̳����A�U
hʓ� Ovv