Estimate the sum or difference.
1. 4/6+1/8=
2. 2/6+7/8=
3. 5/6-3/8=
4. 4/6+3/8=
5. 7/8-5/6=
6. 1/6+7/8=

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b. x + 1

step-by-step explanation:

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noncoplanar points are points that do not lie on the same line.

a.)the line for function b is steeper