The range of m is [- 1, +∞), which means-1≤ m.

The range of m is (-1, 5), which means-1

The range of m is (-1, +∞), which means-1

The range of m is (-1, 5), which means-1

The value range of m is (-∞, 5), which means m < 5.

If it is (-∞,+∞), it means that m can take any value.

Parentheses can get that value, parentheses can't get that value, they can only be infinitely close.

Parentheses can only be used on infinite edges.

+∞ means positive infinity,

-∞ means negative infinity.