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Try this ACT math practice question on what happens to the y-intercept of a line when it is reflected.

In the standard $xy-$coordinate plane, the line $3x – y = 6$ is reflected across the $x-$axis. What is the $y-$intercept of the resulting line?

- $\quad -6$
- $\quad -2$
- $\quad 2$
- $\quad 3$
- $\quad 6$