What is the range of possible lengths for the third side of a triangle that has side lengths of 7 and 10?

In a triangle the sum of the lengths of two shorter sides must be greater than the length of the longest side.
the triangle has side lengths of 7 and 10. let x be the length of the third side.

1)
assume 10 is the longest side.


2)
assume x is the longest side.


combine the inequalities:


the range of possible lengths for the third side of the triangle is .

C.1because in the function table shown when you plug -2 in for x your outcome is 1.