1.If f(x)=2{x}+5xf(x) = 2\{x\} + 5xf(x)=2{x}+5x, where {x}\{x\}{x} is fractional part function, then f(−1.4)f(-1.4)f(−1.4) isa.8.28.28.2b.−8.2-8.2−8.2c.−5.8-5.8−5.8d.−5-5−5Login to continueOnly logged in users canattempt or see the solution.