Please show me where I went wrong and how to correct it- thank you!

1. Consider the function f(x) = 2x- 1 - 5: graphed below. V 2 -. --1-- -2 1.5 31 0.5 1/5 (a) On the graph above, draw the rectangles that you would use to approximate the area between the graph of f(x) = 2x - - and the r-axis on the interval [-1.5, 1) using a left Riemann sum with five subintervals. (b) Estimate the area between the graph of f(x) = 2x - , and the x-axis on the interval [-1.5, 1] using a left Riemann sum with five subintervals. 5 Ax = -1.5- 1 - 0:5 F ( - 1 . 5 ) = 2( 1.5) - 1/2 - - 3.5 (- 3.5) + ( - 2.5 )+ (- 1.5 ) + (- 1/2) IF ( - 1 ) = 2(-1) - 1/2 = - 2.5 + ( 1/2 ) = - 7.5 F ( - 0.5 ) = 2(-0.5)- 1/2 = 1.5 0x (-7.5 ) F ( 8 ) = 2 (0) - 1/2 = - 1/2 = (-0.5) (-7.5) = 3.75 ? F ( 0.5 ) = 2(0.5 ) - 1/2 = 1/2