As they are written, they are all linear. I think you meant for the third one to be y=x^2. if that is true then y=x^2 is a quadratic and therefore is the answer
The answer would be 1
Slope formula is y2-y1/x2-x1
8-2/8-2
6/6
1
Because half of 8 is 4
Divide 1 by 1/2 or .5... 1 becomes 1/1 and 1/2 is flipped to 2/1, then multiply
Answer:
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Step-by-step explanation: