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What is the point-slope form of the equation for the line with a slope of -2 that passes through (1,4)?

Imogene invested $8,000 in a bank account that pays 8 percent simple interest at the end of each year. her friend invested the same amount in stocks where the growth of the investment is represented as 2,000 times the square root of 2 less than the time lapsed in years. if y1 and y2 represent the amount earned in dollars and t is the time lapsed in years, which system of equations correctly represents the situation?

Pyramid shown has a square base that is 18 inches on each side has a surface area of 164 square inches what is the slant height