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Can y’all help me please anyone know this?

What is the length of the segment joining the points at (4,5) and (6,-2) round to the nearest tenth if necessary

List x1, x2, x3, x4 where xi is the left endpoint of the four equal intervals used to estimate the area under the curve of f(x) between x = 4 and x = 6. a 4, 4.5, 5, 5.5 b 4.5, 5, 5.5, 6 c 4.25, 4.75, 5.25, 5.75 d 4, 4.2, 5.4, 6

Interpret the following expression (5y^2-7)^3/(2y)^2