Beginning & Intermediate Algebra
A solid vertical line x=−2x = −2, with no region shaded
A dashed vertical line x=−2x = −2, with the region to the left of the line shaded
A solid vertical line x=−2x = −2, with the region to the right of the line shaded
A dashed vertical line x=−2x = −2, with the region to the right of the line shaded