9 foot because it stated that 1 in. = 1 foot
The formula to finda slope is y2-y1/x2-x1 . Let’s pick a random spot, say (2,6) and (6,6). This would make the slope 6-6/6-2 = 0/4. We know that 0/a is undefined, therefore the answer is undefined.
1/2x2x6
=1x6
=6
That's your answer.
