plzzz help - i will mark brainest
1.-Write the recursive rule of the sequence 9, 3, 3, 9,... −− .
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2.-A line has an x-intercept of (4, 0) and a y-intercept of (0, 12). Find the slope of the line.
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3.-A horizontal line includes the points (0, -5 ) and ( 2, -5 ) Find the slope of the line.